diff --git a/packages/attestation-service/config/.env.development b/packages/attestation-service/config/.env.development
index d429ab4e8a7..a8b1540c59f 100644
--- a/packages/attestation-service/config/.env.development
+++ b/packages/attestation-service/config/.env.development
@@ -1,4 +1,4 @@
-DB_URL=sqlite://db/dev.db
+DATABASE_URL=sqlite://db/dev.db
 CELO_PROVIDER=https://integration-forno.celo-testnet.org
 ACCOUNT_ADDRESS=0xE6e53b5fc2e18F51781f14a3ce5E7FD468247a15
 ATTESTATION_KEY=x
diff --git a/packages/attestation-service/config/database.json b/packages/attestation-service/config/database.json
index f15c454248a..76e76db046a 100644
--- a/packages/attestation-service/config/database.json
+++ b/packages/attestation-service/config/database.json
@@ -1,11 +1,11 @@
 {
   "development": {
-    "use_env_variable": "DB_URL"
+    "use_env_variable": "DATABASE_URL"
   },
   "staging": {
-    "use_env_variable": "DB_URL"
+    "use_env_variable": "DATABASE_URL"
   },
   "production": {
-    "use_env_variable": "DB_URL"
+    "use_env_variable": "DATABASE_URL"
   }
 }
diff --git a/packages/attestation-service/migrations/20191015211858-create-attestation.js b/packages/attestation-service/migrations/20191015211858-create-attestation.js
new file mode 100644
index 00000000000..aca5106d69c
--- /dev/null
+++ b/packages/attestation-service/migrations/20191015211858-create-attestation.js
@@ -0,0 +1,52 @@
+'use strict'
+module.exports = {
+  up: async (queryInterface, Sequelize) => {
+    const transaction = await queryInterface.sequelize.transaction()
+
+    try {
+      await queryInterface.createTable('Attestations', {
+        id: {
+          allowNull: false,
+          autoIncrement: true,
+          primaryKey: true,
+          type: Sequelize.INTEGER,
+        },
+        account: {
+          allowNull: false,
+          type: Sequelize.STRING,
+        },
+        phoneNumber: {
+          allowNull: false,
+          type: Sequelize.STRING,
+        },
+        issuer: {
+          allowNull: false,
+          type: Sequelize.STRING,
+        },
+        createdAt: {
+          allowNull: false,
+          type: Sequelize.DATE,
+        },
+        updatedAt: {
+          allowNull: false,
+          type: Sequelize.DATE,
+        },
+      })
+
+      await queryInterface.addIndex(
+        'Attestations',
+        ['account', 'phoneNumber', 'issuer'],
+        { fields: ['account', 'phoneNumber', 'issuer'], unique: true },
+        { transaction }
+      )
+
+      await transaction.commit()
+    } catch (error) {
+      await transaction.rollback()
+      throw error
+    }
+  },
+  down: (queryInterface, Sequelize) => {
+    return queryInterface.dropTable('Attestations')
+  },
+}
diff --git a/packages/attestation-service/package.json b/packages/attestation-service/package.json
index 2fe9a73d1cb..99c3564d902 100644
--- a/packages/attestation-service/package.json
+++ b/packages/attestation-service/package.json
@@ -17,24 +17,29 @@
     "clean": "tsc -b . --clean",
     "clean:all": "yarn clean && rm -rf lib",
     "prepublishOnly": "yarn build:gen && yarn build",
-    "start": "TS_NODE_FILES=true ts-node src/index.ts",
+    "start-ts": "TS_NODE_FILES=true ts-node src/index.ts",
+    "start": "node lib/index.js",
     "db:create:dev": "mkdir -p db && touch db/dev.db",
     "db:migrate": "sequelize db:migrate",
+    "db:migrate:undo": "sequelize db:migrate:undo",
     "db:migrate:dev": "sequelize db:migrate",
     "dev": "CONFIG=config/.env.development nodemon",
     "lint": "tslint -c tslint.json --project ."
   },
   "dependencies": {
-    "@celo/contractkit": "0.1.1",
+    "@celo/contractkit": "0.1.6",
     "@celo/utils": "^0.1.0",
     "bignumber.js": "^7.2.0",
     "body-parser": "1.19.0",
     "debug": "^4.1.1",
     "dotenv": "8.0.0",
     "eth-lib": "^0.2.8",
+    "io-ts": "2.0.1",
+    "fp-ts":"2.1.1",
     "nexmo": "2.4.2",
     "web3": "1.0.0-beta.37",
     "express": "4.17.1",
+    "mysql2": "2.0.0-alpha1",
     "pg": "7.12.1",
     "pg-hstore": "2.3.3",
     "sequelize": "5.13.1",
diff --git a/packages/attestation-service/src/attestation.ts b/packages/attestation-service/src/attestation.ts
index 9790fef2de5..37411ea33f7 100644
--- a/packages/attestation-service/src/attestation.ts
+++ b/packages/attestation-service/src/attestation.ts
@@ -1,38 +1,124 @@
+import { AttestationState } from '@celo/contractkit/lib/wrappers/Attestations'
 import { attestToIdentifier, SignatureUtils } from '@celo/utils'
+import { privateKeyToAddress } from '@celo/utils/lib/address'
 import { retryAsyncWithBackOff } from '@celo/utils/lib/async'
 import express from 'express'
+import * as t from 'io-ts'
+import { existingAttestationRequest, kit, persistAttestationRequest } from './db'
+import { Address, AddressType, E164Number, E164PhoneNumberType } from './request'
 import { sendSms } from './sms'
-function signAttestation(phoneNumber: string, account: string) {
+
+export const AttestationRequestType = t.type({
+  phoneNumber: E164PhoneNumberType,
+  account: AddressType,
+  issuer: AddressType,
+})
+
+export type AttestationRequest = t.TypeOf<typeof AttestationRequestType>
+
+function getAttestationKey() {
   if (process.env.ATTESTATION_KEY === undefined) {
     console.error('Did not specify ATTESTATION_KEY')
     throw new Error('Did not specify ATTESTATION_KEY')
   }
 
-  const signature = attestToIdentifier(phoneNumber, account, process.env.ATTESTATION_KEY)
+  return process.env.ATTESTATION_KEY
+}
+
+async function validateAttestationRequest(request: AttestationRequest) {
+  // check if it exists in the database
+  if (
+    (await existingAttestationRequest(request.phoneNumber, request.account, request.issuer)) !==
+    null
+  ) {
+    throw new Error('Attestation already sent')
+  }
+  const key = getAttestationKey()
+  const address = privateKeyToAddress(key)
+
+  // TODO: Check with the new Accounts.sol
+  if (address.toLowerCase() !== request.issuer.toLowerCase()) {
+    throw new Error(`Mismatching issuer, I am ${address}`)
+  }
+
+  const attestations = await kit.contracts.getAttestations()
+  const state = await attestations.getAttestationState(
+    request.phoneNumber,
+    request.account,
+    request.issuer
+  )
+
+  if (state.attestationState !== AttestationState.Incomplete) {
+    throw new Error('No incomplete attestation found')
+  }
+
+  // TODO: Check expiration
+  return
+}
+
+async function validateAttestation(
+  attestationRequest: AttestationRequest,
+  attestationCode: string
+) {
+  const attestations = await kit.contracts.getAttestations()
+  const isValid = await attestations.validateAttestationCode(
+    attestationRequest.phoneNumber,
+    attestationRequest.account,
+    attestationRequest.issuer,
+    attestationCode
+  )
+  if (!isValid) {
+    throw new Error('Valid attestation could not be provided')
+  }
+  return
+}
+
+function signAttestation(phoneNumber: E164Number, account: Address) {
+  const signature = attestToIdentifier(phoneNumber, account, getAttestationKey())
 
   return SignatureUtils.serializeSignature(signature)
 }
 
 function toBase64(str: string) {
-  return Buffer.from(str, 'hex').toString('base64')
+  return Buffer.from(str.slice(2), 'hex').toString('base64')
 }
 
 function createAttestationTextMessage(attestationCode: string) {
   return `<#> ${toBase64(attestationCode)} ${process.env.APP_SIGNATURE}`
 }
 
-export async function handleAttestationRequest(req: express.Request, res: express.Response) {
-  // TODO: Should parse request appropriately
-
-  // TODO: Should validate request here
-  // const attestations = await kit.contracts.getAttestations()
-
-  // Produce attestation
-  const attestationCode = signAttestation(req.body.phoneNumber, req.body.account)
-  const textMessage = createAttestationTextMessage(attestationCode)
+export async function handleAttestationRequest(
+  _req: express.Request,
+  res: express.Response,
+  attestationRequest: AttestationRequest
+) {
+  let attestationCode
+  try {
+    await validateAttestationRequest(attestationRequest)
+    attestationCode = signAttestation(attestationRequest.phoneNumber, attestationRequest.account)
+    await validateAttestation(attestationRequest, attestationCode)
+  } catch (error) {
+    console.error(error)
+    res.status(422).json({ success: false, error: error.toString() })
+    return
+  }
 
-  // Send the SMS
-  await retryAsyncWithBackOff(sendSms, 10, [req.body.phoneNumber, textMessage], 1000)
+  try {
+    const textMessage = createAttestationTextMessage(attestationCode)
+    await persistAttestationRequest(
+      attestationRequest.phoneNumber,
+      attestationRequest.account,
+      attestationRequest.issuer
+    )
+    await retryAsyncWithBackOff(sendSms, 10, [attestationRequest.phoneNumber, textMessage], 1000)
+  } catch (error) {
+    console.error(error)
+    res.status(500).json({
+      success: false,
+      error: 'Something went wrong while attempting to send SMS, try again later',
+    })
+    return
+  }
 
   res.json({ success: true })
 }
diff --git a/packages/attestation-service/src/db.ts b/packages/attestation-service/src/db.ts
index 2a2266bd372..5a75590d85c 100644
--- a/packages/attestation-service/src/db.ts
+++ b/packages/attestation-service/src/db.ts
@@ -1,15 +1,15 @@
 import { ContractKit, newKit } from '@celo/contractkit'
 import { Sequelize } from 'sequelize'
 import { fetchEnv } from './env'
+import Attestation, { AttestationStatic } from './models/attestation'
 
 export let sequelize: Sequelize | undefined
 
 export function initializeDB() {
   if (sequelize === undefined) {
-    sequelize = new Sequelize(fetchEnv('DB_URL'))
+    sequelize = new Sequelize(fetchEnv('DATABASE_URL'))
     return sequelize.authenticate() as Promise<void>
   }
-
   return Promise.resolve()
 }
 
@@ -20,3 +20,29 @@ export function initializeKit() {
     kit = newKit(fetchEnv('CELO_PROVIDER'))
   }
 }
+
+let AttestationTable: AttestationStatic
+
+async function getAttestationTable() {
+  if (AttestationTable) {
+    return AttestationTable
+  }
+  AttestationTable = await Attestation(sequelize!)
+  return AttestationTable
+}
+
+export async function existingAttestationRequest(
+  phoneNumber: string,
+  account: string,
+  issuer: string
+): Promise<AttestationStatic | null> {
+  return (await getAttestationTable()).findOne({ where: { phoneNumber, account, issuer } })
+}
+
+export async function persistAttestationRequest(
+  phoneNumber: string,
+  account: string,
+  issuer: string
+) {
+  return (await getAttestationTable()).create({ phoneNumber, account, issuer })
+}
diff --git a/packages/attestation-service/src/index.ts b/packages/attestation-service/src/index.ts
index 6f55ba66bf7..8b7d059f1f1 100644
--- a/packages/attestation-service/src/index.ts
+++ b/packages/attestation-service/src/index.ts
@@ -1,7 +1,8 @@
 import * as dotenv from 'dotenv'
 import express from 'express'
-import { handleAttestationRequest } from './attestation'
+import { AttestationRequestType, handleAttestationRequest } from './attestation'
 import { initializeDB, initializeKit } from './db'
+import { createValidatedHandler } from './request'
 import { initializeSmsProviders } from './sms'
 
 async function init() {
@@ -18,7 +19,10 @@ async function init() {
   const port = process.env.PORT || 3000
   app.listen(port, () => console.log(`Server running on ${port}!`))
 
-  app.post('/attestations', handleAttestationRequest)
+  app.post(
+    '/attestations',
+    createValidatedHandler(AttestationRequestType, handleAttestationRequest)
+  )
 }
 
 init().catch((err) => {
diff --git a/packages/attestation-service/src/models/attestation.ts b/packages/attestation-service/src/models/attestation.ts
new file mode 100644
index 00000000000..a2b79e765b7
--- /dev/null
+++ b/packages/attestation-service/src/models/attestation.ts
@@ -0,0 +1,18 @@
+import { BuildOptions, DataTypes, Model, Sequelize } from 'sequelize'
+
+interface AttestationModel extends Model {
+  readonly id: number
+  account: string
+  phoneNumber: string
+  issuer: string
+}
+
+export type AttestationStatic = typeof Model &
+  (new (values?: object, options?: BuildOptions) => AttestationModel)
+
+export default (sequelize: Sequelize) =>
+  sequelize.define('Attestations', {
+    account: DataTypes.STRING,
+    phoneNumber: DataTypes.STRING,
+    issuer: DataTypes.STRING,
+  }) as AttestationStatic
diff --git a/packages/attestation-service/src/request.ts b/packages/attestation-service/src/request.ts
new file mode 100644
index 00000000000..dfd5ae13910
--- /dev/null
+++ b/packages/attestation-service/src/request.ts
@@ -0,0 +1,83 @@
+import { isE164NumberStrict } from '@celo/utils/lib/phoneNumbers'
+import { isValidAddress } from '@celo/utils/lib/signatureUtils'
+import express from 'express'
+import { either, isLeft } from 'fp-ts/lib/Either'
+import * as t from 'io-ts'
+
+export function createValidatedHandler<T>(
+  requestType: t.Type<T>,
+  handler: (req: express.Request, res: express.Response, parsedRequest: T) => Promise<void>
+) {
+  return async (req: express.Request, res: express.Response) => {
+    const parsedRequest = requestType.decode(req.body)
+    if (isLeft(parsedRequest)) {
+      res.status(422).json({
+        success: false,
+        error: 'Error parsing invalid request',
+        errors: serializeErrors(parsedRequest.left),
+      })
+    } else {
+      try {
+        await handler(req, res, parsedRequest.right)
+      } catch (error) {
+        console.error(error)
+        res.status(500).json({ success: false, error: 'Something went wrong' })
+      }
+    }
+  }
+}
+
+export const E164PhoneNumberType = new t.Type<string, string, unknown>(
+  'E164Number',
+  t.string.is,
+  (input, context) =>
+    either.chain(
+      t.string.validate(input, context),
+      (stringValue) =>
+        isE164NumberStrict(stringValue)
+          ? t.success(stringValue)
+          : t.failure(stringValue, context, 'is not a valid e164 number')
+    ),
+  String
+)
+
+export const AddressType = new t.Type<string, string, unknown>(
+  'Address',
+  t.string.is,
+  (input, context) =>
+    either.chain(
+      t.string.validate(input, context),
+      (stringValue) =>
+        isValidAddress(stringValue)
+          ? t.success(stringValue)
+          : t.failure(stringValue, context, 'is not a valid address')
+    ),
+  String
+)
+
+export type Address = t.TypeOf<typeof AddressType>
+export type E164Number = t.TypeOf<typeof E164PhoneNumberType>
+
+function serializeErrors(errors: t.Errors) {
+  let serializedErrors: any = {}
+  errors.map((error) => {
+    const expectedType = error.context[error.context.length - 1].type
+    const path = error.context.map(({ key }) => key).join('.')
+    const value =
+      error.message ||
+      `Expected value at path ${path} to be of type ${expectedType.name}, but received ${
+        error.value
+      }`
+
+    // Create recursive payload in case of nested properties
+    let payload: any = value
+    for (let index = error.context.length - 1; index > 0; index--) {
+      const innerError = payload
+      payload = {}
+      payload[error.context[index].key] = innerError
+    }
+
+    serializedErrors = { ...serializedErrors, ...payload }
+  })
+  return serializedErrors
+}
diff --git a/packages/celotool/src/cmds/account/verify.ts b/packages/celotool/src/cmds/account/verify.ts
index 63b16bc48d4..126a7742f02 100644
--- a/packages/celotool/src/cmds/account/verify.ts
+++ b/packages/celotool/src/cmds/account/verify.ts
@@ -147,7 +147,7 @@ async function verifyCode(
     matchingIssuer,
     code
   )
-  if (isValidRequest === NULL_ADDRESS) {
+  if (!isValidRequest) {
     console.warn('Code was not valid')
     return
   }
diff --git a/packages/contractkit/package.json b/packages/contractkit/package.json
index ea2be897e57..becf434c741 100644
--- a/packages/contractkit/package.json
+++ b/packages/contractkit/package.json
@@ -31,7 +31,7 @@
     "bignumber.js": "^7.2.0",
     "cross-fetch": "3.0.4",
     "debug": "^4.1.1",
-    "fp-ts": "2.0.5",
+    "fp-ts": "2.1.1",
     "eth-lib": "^0.2.8",
     "io-ts": "2.0.1",
     "web3": "1.0.0-beta.37",
diff --git a/packages/contractkit/src/wrappers/Attestations.ts b/packages/contractkit/src/wrappers/Attestations.ts
index dc78173ebb5..863a4892e0a 100644
--- a/packages/contractkit/src/wrappers/Attestations.ts
+++ b/packages/contractkit/src/wrappers/Attestations.ts
@@ -2,7 +2,7 @@ import { ECIES, PhoneNumberUtils, SignatureUtils } from '@celo/utils'
 import { zip3 } from '@celo/utils/lib/collections'
 import BigNumber from 'bignumber.js'
 import * as Web3Utils from 'web3-utils'
-import { Address, CeloContract } from '../base'
+import { Address, CeloContract, NULL_ADDRESS } from '../base'
 import { Attestations } from '../generated/types/Attestations'
 import {
   BaseWrapper,
@@ -20,6 +20,10 @@ export interface AttestationStat {
   total: number
 }
 
+export interface AttestationStateForIssuer {
+  attestationState: AttestationState
+}
+
 export interface AttestationsToken {
   address: Address
   fee: BigNumber
@@ -59,6 +63,7 @@ function attestationMessageToSign(phoneHash: string, account: Address) {
   return messageHash
 }
 
+const stringIdentity = (x: string) => x
 export class AttestationsWrapper extends BaseWrapper<Attestations> {
   /**
    *  Returns the time an attestation can be completable before it is considered expired
@@ -94,6 +99,21 @@ export class AttestationsWrapper extends BaseWrapper<Attestations> {
     (stat) => ({ completed: toNumber(stat[0]), total: toNumber(stat[1]) })
   )
 
+  /**
+   * Returns the attestation state of a phone number/account/issuer tuple
+   * @param phoneNumber Phone Number
+   * @param account Account
+   */
+  getAttestationState: (
+    phoneNumber: string,
+    account: Address,
+    issuer: Address
+  ) => Promise<AttestationStateForIssuer> = proxyCall(
+    this.contract.methods.getAttestationState,
+    tupleParser(PhoneNumberUtils.getPhoneHash, stringIdentity, stringIdentity),
+    (state) => ({ attestationState: parseInt(state[0], 10) })
+  )
+
   /**
    * Returns the set wallet address for the account
    * @param account Account
@@ -356,6 +376,9 @@ export class AttestationsWrapper extends BaseWrapper<Attestations> {
     const phoneHash = PhoneNumberUtils.getPhoneHash(phoneNumber)
     const expectedSourceMessage = attestationMessageToSign(phoneHash, account)
     const { r, s, v } = parseSignature(expectedSourceMessage, code, issuer.toLowerCase())
-    return this.contract.methods.validateAttestationCode(phoneHash, account, v, r, s).call()
+    const result = await this.contract.methods
+      .validateAttestationCode(phoneHash, account, v, r, s)
+      .call()
+    return result.toLowerCase() !== NULL_ADDRESS
   }
 }
diff --git a/packages/mobile/src/tokens/saga.ts b/packages/mobile/src/tokens/saga.ts
index e0613912947..3d45da08c7a 100644
--- a/packages/mobile/src/tokens/saga.ts
+++ b/packages/mobile/src/tokens/saga.ts
@@ -47,18 +47,14 @@ export async function convertToContractDecimals(value: BigNumber, token: CURRENC
 export async function getTokenContract(token: CURRENCY_ENUM) {
   Logger.debug(TAG + '@getTokenContract', `Fetching contract for ${token}`)
   await waitForWeb3Sync()
-  let tokenContract: any
   switch (token) {
     case CURRENCY_ENUM.GOLD:
-      tokenContract = await contractKit.contracts.getGoldToken()
-      break
+      return contractKit.contracts.getGoldToken()
     case CURRENCY_ENUM.DOLLAR:
-      tokenContract = await contractKit.contracts.getStableToken()
-      break
+      return contractKit.contracts.getStableToken()
     default:
       throw new Error(`Could not fetch contract for unknown token ${token}`)
   }
-  return tokenContract
 }
 
 interface TokenFetchFactory {
diff --git a/packages/utils/src/async.ts b/packages/utils/src/async.ts
index 7b26b1f8ae7..3397efa09a2 100644
--- a/packages/utils/src/async.ts
+++ b/packages/utils/src/async.ts
@@ -5,14 +5,14 @@ export function sleep(ms: number): Promise<void> {
   return new Promise<void>((resolve) => setTimeout(resolve, ms))
 }
 
-type InFunction = (...params: any) => Promise<any>
+type InFunction<T extends any[], U> = (...params: T) => Promise<U>
 
 // Retries an async function when it raises an exeption
 // if all the tries fail it raises the last thrown exeption
-export const retryAsync = async (
-  inFunction: InFunction,
+export const retryAsync = async <T extends any[], U>(
+  inFunction: InFunction<T, U>,
   tries: number,
-  params: any,
+  params: T,
   delay = 100
 ) => {
   let saveError
@@ -32,10 +32,10 @@ export const retryAsync = async (
 
 // Retries an async function when it raises an exeption
 // if all the tries fail it raises the last thrown exeption
-export const retryAsyncWithBackOff = async (
-  inFunction: InFunction,
+export const retryAsyncWithBackOff = async <T extends any[], U>(
+  inFunction: InFunction<T, U>,
   tries: number,
-  params: any,
+  params: T,
   delay = 100,
   factor = 1.5
 ) => {
diff --git a/packages/utils/src/phoneNumbers.ts b/packages/utils/src/phoneNumbers.ts
index fc12a5f0164..3aabaa31c94 100644
--- a/packages/utils/src/phoneNumbers.ts
+++ b/packages/utils/src/phoneNumbers.ts
@@ -110,6 +110,15 @@ export function isE164Number(phoneNumber: string) {
   return E164RegEx.test(phoneNumber)
 }
 
+// Actually runs through the parsing instead of using a regex
+export function isE164NumberStrict(phoneNumber: string) {
+  const parsedPhoneNumber = phoneUtil.parse(phoneNumber)
+  if (!phoneUtil.isValidNumber(parsedPhoneNumber)) {
+    return false
+  }
+  return phoneUtil.format(parsedPhoneNumber, PhoneNumberFormat.E164) === phoneNumber
+}
+
 export function parsePhoneNumber(
   phoneNumberRaw: string,
   defaultCountryCode: string
diff --git a/packages/utils/src/signatureUtils.test.ts b/packages/utils/src/signatureUtils.test.ts
index c85ac04dfb7..4850893dfef 100644
--- a/packages/utils/src/signatureUtils.test.ts
+++ b/packages/utils/src/signatureUtils.test.ts
@@ -9,6 +9,6 @@ describe('signatures', () => {
     const message = Web3Utils.soliditySha3({ type: 'string', value: 'identifier' })
     const signature = signMessage(message, pKey, address)
     const serializedSig = serializeSignature(signature)
-    parseSignature(message, '0x' + serializedSig, address)
+    parseSignature(message, serializedSig, address)
   })
 })
diff --git a/packages/utils/src/signatureUtils.ts b/packages/utils/src/signatureUtils.ts
index ec90d10c4fb..fce158cff2c 100644
--- a/packages/utils/src/signatureUtils.ts
+++ b/packages/utils/src/signatureUtils.ts
@@ -28,7 +28,7 @@ export function serializeSignature(signature: Signature) {
   const serializedV = signature.v.toString(16)
   const serializedR = signature.r.slice(2)
   const serializedS = signature.s.slice(2)
-  return serializedV + serializedR + serializedS
+  return '0x' + serializedV + serializedR + serializedS
 }
 
 export function parseSignature(messageHash: string, signature: string, signer: string) {
diff --git a/yarn.lock b/yarn.lock
index 87e0e3e9862..20ee84cf0d9 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2177,18 +2177,6 @@
   resolved "https://registry.yarnpkg.com/@celo/client/-/client-0.0.173.tgz#30d8266f8f4897f1db5c9bf4ad344801e620326f"
   integrity sha512-pAzo3Oy+V/BEkKb7ZZe0l71s6mOdPLLJZfLNo2Ihm2bx37nx8g4LNkcfj+0vVtRQPtiLrGiQ42U8pby3LwmC4Q==
 
-"@celo/contractkit@0.1.1":
-  version "0.1.1"
-  resolved "https://registry.yarnpkg.com/@celo/contractkit/-/contractkit-0.1.1.tgz#bd85812d883b58fbc8d9897a59e2f7311cc0e2eb"
-  integrity sha512-GQbLuLUEgKtwy2I8ZVi4P0HBVhh9MlT5S90vIrGznb9eZ2vwGahfOxHapVKcxw2I4tbVBNTTWWpcjzOtJZCY7Q==
-  dependencies:
-    "@celo/utils" "^0.0.6-beta5"
-    "@types/debug" "^4.1.5"
-    bignumber.js "^7.2.0"
-    debug "^4.1.1"
-    web3 "1.0.0-beta.37"
-    web3-utils "1.0.0-beta.37"
-
 "@celo/contractkit@0.1.5":
   version "0.1.5"
   resolved "https://registry.yarnpkg.com/@celo/contractkit/-/contractkit-0.1.5.tgz#097052ac8f672f03480a1226f11f0c398c35c75e"
@@ -2255,23 +2243,6 @@
     lodash "^4.17.14"
     web3-utils "1.0.0-beta.37"
 
-"@celo/utils@^0.0.6-beta5":
-  version "0.0.6-beta5"
-  resolved "https://registry.yarnpkg.com/@celo/utils/-/utils-0.0.6-beta5.tgz#a558cfc9dc68d9ec15888798c95cd6e5f1d3fe67"
-  integrity sha512-TGIDjr1aCcNRVv2Z3DZkjd71K/vNd6C18BPZw8VfKzSFyt0UcxkbN/X+loqvJSrwymtYgu/s6JdIQD3t14xiJA==
-  dependencies:
-    "@umpirsky/country-list" "git://github.com/umpirsky/country-list#05fda51"
-    bignumber.js "^7.2.0"
-    bn.js "4.11.8"
-    country-data "^0.0.31"
-    crypto-js "^3.1.9-1"
-    elliptic "^6.4.1"
-    ethereumjs-util "^5.2.0"
-    futoin-hkdf "^1.0.3"
-    google-libphonenumber "^3.2.1"
-    lodash "^4.17.14"
-    web3-utils "1.0.0-beta.37"
-
 "@cnakazawa/watch@^1.0.3":
   version "1.0.3"
   resolved "https://registry.yarnpkg.com/@cnakazawa/watch/-/watch-1.0.3.tgz#099139eaec7ebf07a27c1786a3ff64f39464d2ef"
@@ -11933,6 +11904,11 @@ denodeify@^1.2.1:
   resolved "https://registry.yarnpkg.com/denodeify/-/denodeify-1.2.1.tgz#3a36287f5034e699e7577901052c2e6c94251631"
   integrity sha1-OjYof1A05pnnV3kBBSwubJQlFjE=
 
+denque@^1.4.1:
+  version "1.4.1"
+  resolved "https://registry.yarnpkg.com/denque/-/denque-1.4.1.tgz#6744ff7641c148c3f8a69c307e51235c1f4a37cf"
+  integrity sha512-OfzPuSZKGcgr96rf1oODnfjqBFmr1DVoc/TrItj3Ohe0Ah1C5WX5Baquw/9U9KovnQ88EqmJbD66rKYUQYN1tQ==
+
 depd@1.1.1:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/depd/-/depd-1.1.1.tgz#5783b4e1c459f06fa5ca27f991f3d06e7a310359"
@@ -15171,10 +15147,10 @@ forwarded@~0.1.2:
   resolved "https://registry.yarnpkg.com/forwarded/-/forwarded-0.1.2.tgz#98c23dab1175657b8c0573e8ceccd91b0ff18c84"
   integrity sha1-mMI9qxF1ZXuMBXPozszZGw/xjIQ=
 
-fp-ts@2.0.5:
-  version "2.0.5"
-  resolved "https://registry.yarnpkg.com/fp-ts/-/fp-ts-2.0.5.tgz#9560d8a6a4f53cbda9f9b31ed8d1458e41939e07"
-  integrity sha512-opI5r+rVlpZE7Rhk0YtqsrmxGkbIw0dRNqGca8FEAMMnjomXotG+R9QkLQg20onx7R8qhepAn4CCOP8usma/Xw==
+fp-ts@2.1.1:
+  version "2.1.1"
+  resolved "https://registry.yarnpkg.com/fp-ts/-/fp-ts-2.1.1.tgz#c910544499d7c959351bb4260ee7c44a544084c1"
+  integrity sha512-YcWhMdDCFCja0MmaDroTgNu+NWWrrnUEn92nvDgrtVy9Z71YFnhNVIghoHPt8gs82ijoMzFGeWKvArbyICiJgw==
 
 fraction.js@4.0.8:
   version "4.0.8"
@@ -15735,7 +15711,7 @@ generate-function@^1.0.1:
   resolved "https://registry.yarnpkg.com/generate-function/-/generate-function-1.1.0.tgz#54c21b080192b16d9877779c5bb81666e772365f"
   integrity sha1-VMIbCAGSsW2Yd3ecW7gWZudyNl8=
 
-generate-function@^2.0.0:
+generate-function@^2.0.0, generate-function@^2.3.1:
   version "2.3.1"
   resolved "https://registry.yarnpkg.com/generate-function/-/generate-function-2.3.1.tgz#f069617690c10c868e73b8465746764f97c3479f"
   integrity sha512-eeB5GfMNeevm/GRYq20ShmsaGcmI81kIX2K9XQx5miC8KdHaC6Jm0qQ8ZNeGOi7wYB8OsdxKs+Y2oVuTFuVwKQ==
@@ -16553,11 +16529,6 @@ google-gax@^1.0.0, google-gax@^1.1.2:
     semver "^6.0.0"
     walkdir "^0.4.0"
 
-google-libphonenumber@^3.2.1:
-  version "3.2.5"
-  resolved "https://registry.yarnpkg.com/google-libphonenumber/-/google-libphonenumber-3.2.5.tgz#2ebe6437fd3dbbffd65f4339ad1ba93b3dc56836"
-  integrity sha512-Y0r7MFCI11UDLn0KaMPBEInhROyIOkWkQIyvWMFVF2I+h+sHE3vbl5a7FVe39td6u/w+nlKDdUMP9dMOZyv+2Q==
-
 google-libphonenumber@^3.2.4:
   version "3.2.4"
   resolved "https://registry.yarnpkg.com/google-libphonenumber/-/google-libphonenumber-3.2.4.tgz#91d3fe62ca531f154165e6580b1c55ff6bd53abf"
@@ -17827,6 +17798,13 @@ iconv-lite@^0.4.17, iconv-lite@^0.4.4:
   dependencies:
     safer-buffer "^2.1.0"
 
+iconv-lite@^0.5.0:
+  version "0.5.0"
+  resolved "https://registry.yarnpkg.com/iconv-lite/-/iconv-lite-0.5.0.tgz#59cdde0a2a297cc2aeb0c6445a195ee89f127550"
+  integrity sha512-NnEhI9hIEKHOzJ4f697DMz9IQEXr/MMJ5w64vN2/4Ai+wRnvV7SBrL0KLoRlwaKVghOc7LQ5YkPLuX146b6Ydw==
+  dependencies:
+    safer-buffer ">= 2.1.2 < 3"
+
 icss-replace-symbols@1.1.0, icss-replace-symbols@^1.0.2, icss-replace-symbols@^1.1.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/icss-replace-symbols/-/icss-replace-symbols-1.1.0.tgz#06ea6f83679a7749e386cfe1fe812ae5db223ded"
@@ -21208,6 +21186,14 @@ lru-cache@^4.1.1, lru-cache@^4.1.2:
     pseudomap "^1.0.2"
     yallist "^2.1.2"
 
+lru-cache@^4.1.3, lru-cache@^4.1.5, lru-cache@~4.1.1:
+  version "4.1.5"
+  resolved "https://registry.yarnpkg.com/lru-cache/-/lru-cache-4.1.5.tgz#8bbe50ea85bed59bc9e33dcab8235ee9bcf443cd"
+  integrity sha512-sWZlbEP2OsHNkXrMl5GYk/jKk70MBng6UU4YI/qGDYbgf6YbP4EvmqISbXCoJiRKs+1bSpFHVgQxvJ17F2li5g==
+  dependencies:
+    pseudomap "^1.0.2"
+    yallist "^2.1.2"
+
 lru-cache@^5.0.0, lru-cache@^5.1.1:
   version "5.1.1"
   resolved "https://registry.yarnpkg.com/lru-cache/-/lru-cache-5.1.1.tgz#1da27e6710271947695daf6848e847f01d84b920"
@@ -22466,6 +22452,21 @@ mv@~2:
     ncp "~2.0.0"
     rimraf "~2.4.0"
 
+mysql2@2.0.0-alpha1:
+  version "2.0.0-alpha1"
+  resolved "https://registry.yarnpkg.com/mysql2/-/mysql2-2.0.0-alpha1.tgz#cb76b874c4c24471334cfebb874ebed9a2a6afe5"
+  integrity sha512-E1S97AZ7uuDycWzjzmSsPlp6Lgxd83XKFGyi8AOurFBmjC70XmqvSNigJfnioOjkh4ghsEe1m8nobx/PANi/FQ==
+  dependencies:
+    cardinal "^2.1.1"
+    denque "^1.4.1"
+    generate-function "^2.3.1"
+    iconv-lite "^0.5.0"
+    long "^4.0.0"
+    lru-cache "^5.1.1"
+    named-placeholders "^1.1.2"
+    seq-queue "^0.0.5"
+    sqlstring "^2.3.1"
+
 mz@^2.6.0:
   version "2.7.0"
   resolved "https://registry.yarnpkg.com/mz/-/mz-2.7.0.tgz#95008057a56cafadc2bc63dde7f9ff6955948e32"
@@ -22475,6 +22476,13 @@ mz@^2.6.0:
     object-assign "^4.0.1"
     thenify-all "^1.0.0"
 
+named-placeholders@^1.1.2:
+  version "1.1.2"
+  resolved "https://registry.yarnpkg.com/named-placeholders/-/named-placeholders-1.1.2.tgz#ceb1fbff50b6b33492b5cf214ccf5e39cef3d0e8"
+  integrity sha512-wiFWqxoLL3PGVReSZpjLVxyJ1bRqe+KKJVbr4hGs1KWfTZTQyezHFBbuKj9hsizHyGV2ne7EMjHdxEGAybD5SA==
+  dependencies:
+    lru-cache "^4.1.3"
+
 nan@2.13.2:
   version "2.13.2"
   resolved "https://registry.yarnpkg.com/nan/-/nan-2.13.2.tgz#f51dc7ae66ba7d5d55e1e6d4d8092e802c9aefe7"
@@ -28672,6 +28680,11 @@ sentence-case@^2.1.0:
     no-case "^2.2.0"
     upper-case-first "^1.1.2"
 
+seq-queue@^0.0.5:
+  version "0.0.5"
+  resolved "https://registry.yarnpkg.com/seq-queue/-/seq-queue-0.0.5.tgz#d56812e1c017a6e4e7c3e3a37a1da6d78dd3c93e"
+  integrity sha1-1WgS4cAXpuTnw+Ojeh2m143TyT4=
+
 sequelize-cli@5.5.0:
   version "5.5.0"
   resolved "https://registry.yarnpkg.com/sequelize-cli/-/sequelize-cli-5.5.0.tgz#b0570352f70eaa489a25dccf55cf316675d6ff06"
@@ -29775,6 +29788,11 @@ sqlite3@4.0.9:
     node-pre-gyp "^0.11.0"
     request "^2.87.0"
 
+sqlstring@^2.3.1:
+  version "2.3.1"
+  resolved "https://registry.yarnpkg.com/sqlstring/-/sqlstring-2.3.1.tgz#475393ff9e91479aea62dcaf0ca3d14983a7fb40"
+  integrity sha1-R1OT/56RR5rqYtyvDKPRSYOn+0A=
+
 sshpk@^1.7.0:
   version "1.14.1"
   resolved "https://registry.yarnpkg.com/sshpk/-/sshpk-1.14.1.tgz#130f5975eddad963f1d56f92b9ac6c51fa9f83eb"
@@ -33921,6 +33939,7 @@ websocket@^1.0.28:
   dependencies:
     debug "^2.2.0"
     es5-ext "^0.10.50"
+    gulp "^4.0.2"
     nan "^2.14.0"
     typedarray-to-buffer "^3.1.5"
     yaeti "^0.0.6"