diff --git a/__tests__/sagas/nanoContracts/fixtures.js b/__tests__/sagas/nanoContracts/fixtures.js
index 0944f7716..fa6b6e4b4 100644
--- a/__tests__/sagas/nanoContracts/fixtures.js
+++ b/__tests__/sagas/nanoContracts/fixtures.js
@@ -81,6 +81,7 @@ export const fixtures = {
         ncState: {
           success: true,
           nc_id: '3cb032600bdf7db784800e4ea911b10676fa2f67591f82bb62628c234e771595',
+          blueprint_id: '000001342d3c5b858a4d4835baea93fcc683fa615ff5892bd044459621a0340a',
           blueprint_name: 'Bet',
           fields: {
             token_uid: { value: '00' },
diff --git a/__tests__/sagas/nanoContracts/historyNanoContract.test.js b/__tests__/sagas/nanoContracts/historyNanoContract.test.js
index c7d3c277c..a234b0863 100644
--- a/__tests__/sagas/nanoContracts/historyNanoContract.test.js
+++ b/__tests__/sagas/nanoContracts/historyNanoContract.test.js
@@ -27,9 +27,7 @@ describe('sagas/nanoContract/fetchHistory', () => {
     // arrange wallet mock
     const mockedWallet = {
       getNetworkObject: jest.fn(),
-      storage: {
-        isAddressMine: jest.fn(),
-      },
+      isAddressMine: jest.fn(),
     };
     // arrange ncApi mock
     const mockedNcApi = jest.mocked(ncApi);
@@ -115,10 +113,10 @@ describe('sagas/nanoContract/requestHistoryNanoContract', () => {
 
     // call effect to request history
     const gen = requestHistoryNanoContract(nanoContractHistoryRequest({ ncId }));
-    // select wallet
+    // select historyMeta
     gen.next();
     // feed back historyMeta
-    gen.next({});
+    gen.next({ [ncId]: { isLoading: false, after: null } });
     // feed back wallet
     gen.next(fixtures.wallet.readyAndMine);
     // feed back isNanoContractRegistered
diff --git a/__tests__/sagas/nanoContracts/registerNanoContract.test.js b/__tests__/sagas/nanoContracts/registerNanoContract.test.js
index 2a2eb385d..a35e1571d 100644
--- a/__tests__/sagas/nanoContracts/registerNanoContract.test.js
+++ b/__tests__/sagas/nanoContracts/registerNanoContract.test.js
@@ -123,6 +123,7 @@ describe('sagas/nanoContract/registerNanoContract', () => {
     expect(actionResult.payload.action.payload.entryValue).toEqual(expect.objectContaining({
       address,
       ncId,
+      blueprintId: expect.any(String),
       blueprintName: expect.any(String),
     }));
     // assert termination
diff --git a/src/actions.js b/src/actions.js
index 2347b759f..decb0476f 100644
--- a/src/actions.js
+++ b/src/actions.js
@@ -149,6 +149,12 @@ export const types = {
   NANOCONTRACT_HISTORY_SUCCESS: 'NANOCONTRACT_HISTORY_SUCCESS',
   /* It indicates a Nano Contract history failed to load. */
   NANOCONTRACT_HISTORY_FAILURE: 'NANOCONTRACT_HISTORY_FAILURE',
+  /* It initiates an unregistration process of a Nano Contract. */
+  NANOCONTRACT_UNREGISTER_REQUEST: 'NANOCONTRACT_UNREGISTER_REQUEST',
+  /* It signals a successful completion of unregistration process. */
+  NANOCONTRACT_UNREGISTER_SUCCESS: 'NANOCONTRACT_UNREGISTER_SUCCESS',
+  /* It initiates a process to change the address on registered Nano Contract. */
+  NANOCONTRACT_ADDRESS_CHANGE_REQUEST: 'NANOCONTRACT_ADDRESS_CHANGE_REQUEST',
 };
 
 export const featureToggleInitialized = () => ({
@@ -1055,3 +1061,37 @@ export const nanoContractHistoryFailure = (payload) => ({
   type: types.NANOCONTRACT_HISTORY_FAILURE,
   payload,
 });
+
+/**
+ * Request unregistration of a Nano Contract by its key.
+ * @param {{
+ *   ncId: string,
+ * }} Nano Contract ID to unregister.
+ */
+export const nanoContractUnregisterRequest = (unregisterRequest) => ({
+  type: types.NANOCONTRACT_UNREGISTER_REQUEST,
+  payload: unregisterRequest,
+});
+
+/**
+ * Unregistration of a Nano Contract has finished with success.
+ * @param {{
+ *   ncId: string,
+ * }} Nano Contract ID unregistered.
+ */
+export const nanoContractUnregisterSuccess = (unregistered) => ({
+  type: types.NANOCONTRACT_UNREGISTER_SUCCESS,
+  payload: unregistered,
+});
+
+/**
+ * Request a change on the Nano Contract registered.
+ * @param {{
+ *   ncId: string;
+ *   newAddress: string;
+ * }} changeAddressRequest
+ */
+export const nanoContractAddressChangeRequest = (changeAddressRequest) => ({
+  type: types.NANOCONTRACT_ADDRESS_CHANGE_REQUEST,
+  payload: changeAddressRequest,
+});
diff --git a/src/reducers/reducer.js b/src/reducers/reducer.js
index f3537535d..16a7908d4 100644
--- a/src/reducers/reducer.js
+++ b/src/reducers/reducer.js
@@ -477,6 +477,10 @@ export const reducer = (state = initialState, action) => {
       return onNanoContractHistoryFailure(state, action);
     case types.NANOCONTRACT_HISTORY_SUCCESS:
       return onNanoContractHistorySuccess(state, action);
+    case types.NANOCONTRACT_UNREGISTER_SUCCESS:
+      return onNanoContractUnregisterSuccess(state, action);
+    case types.NANOCONTRACT_ADDRESS_CHANGE_REQUEST:
+      return onNanoContractAddressChangeRequest(state, action);
     default:
       return state;
   }
@@ -1329,6 +1333,37 @@ export const onNanoContractRegisterSuccess = (state, { payload }) => ({
   },
 });
 
+/**
+ * @param {Object} state
+ * @param {{
+ *   payload: {
+ *     ncId: string,
+ *   }
+  * }} action
+ */
+export const onNanoContractUnregisterSuccess = (state, { payload }) => {
+  const { ncId } = payload;
+
+  const newRegisteredContracts = { ...state.nanoContract.registered };
+  delete newRegisteredContracts[ncId];
+
+  const newContractsHistory = { ...state.nanoContract.history };
+  delete newContractsHistory[ncId];
+
+  const newContractsHistoryMeta = { ...state.nanoContract.historyMeta };
+  delete newContractsHistoryMeta[ncId];
+
+  return ({
+    ...state,
+    nanoContract: {
+      ...state.nanoContract,
+      registered: newRegisteredContracts,
+      history: newContractsHistory,
+      historyMeta: newContractsHistoryMeta,
+    },
+  });
+};
+
 /**
  * @param {Object} state
  * @param {{
@@ -1407,3 +1442,29 @@ export const onNanoContractHistorySuccess = (state, { payload }) => ({
     },
   },
 });
+
+/**
+ * @param {Object} state
+ * @param {{
+ *   payload: {
+ *     ncId: string;
+ *     newAddress: string;
+ *   }
+ * }} action
+ */
+export const onNanoContractAddressChangeRequest = (state, { payload }) => {
+  const newRegisteredNc = {
+    ...state.nanoContract.registered[payload.ncId],
+    address: payload.newAddress,
+  };
+  return {
+    ...state,
+    nanoContract: {
+      ...state.nanoContract,
+      registered: {
+        ...state.nanoContract.registered,
+        [payload.ncId]: newRegisteredNc,
+      },
+    },
+  };
+};
diff --git a/src/sagas/nanoContract.js b/src/sagas/nanoContract.js
index 6e9fd3e27..f4ec6a366 100644
--- a/src/sagas/nanoContract.js
+++ b/src/sagas/nanoContract.js
@@ -24,6 +24,7 @@ import {
   nanoContractHistorySuccess,
   nanoContractRegisterFailure,
   nanoContractRegisterSuccess,
+  nanoContractUnregisterSuccess,
   onExceptionCaptured,
   types,
 } from '../actions';
@@ -80,7 +81,8 @@ export function* registerNanoContract({ payload }) {
 
   let ncState = null;
   try {
-    ncState = yield call(ncApi.getNanoContractState.bind(ncApi), ncId);
+    const response = yield call([ncApi, ncApi.getNanoContractState], ncId);
+    ncState = response.ncState;
   } catch (error) {
     if (error instanceof NanoRequest404Error) {
       yield put(nanoContractRegisterFailure(failureMessage.nanoContractStateNotFound));
@@ -95,7 +97,7 @@ export function* registerNanoContract({ payload }) {
     address,
     ncId,
     blueprintId: ncState.blueprint_id,
-    blueprintName: ncState.blueprint_name
+    blueprintName: ncState.blueprint_name,
   };
   yield call(wallet.storage.registerNanoContract.bind(wallet.storage), ncId, nc);
 
@@ -254,9 +256,35 @@ export function* requestHistoryNanoContract({ payload }) {
   }
 }
 
+/**
+ * Process Nano Contract unregister request.
+ * @param {{
+ *   payload: {
+ *     ncId: string;
+ *   }
+ * }} action with request payload.
+ */
+export function* unregisterNanoContract({ payload }) {
+  const { ncId } = payload;
+
+  const wallet = yield select((state) => state.wallet);
+  if (!wallet.isReady()) {
+    log.error('Fail unregistering Nano Contract because wallet is not ready yet.');
+    // This will show user an error modal with the option to send the error to sentry.
+    yield put(onExceptionCaptured(new Error(failureMessage.walletNotReadyError), true));
+    return;
+  }
+
+  yield call(wallet.storage.unregisterNanoContract.bind(wallet.storage), ncId);
+
+  log.debug(`Success unregistering Nano Contract. ncId = ${ncId}`);
+  yield put(nanoContractUnregisterSuccess({ ncId }));
+}
+
 export function* saga() {
   yield all([
     takeEvery(types.NANOCONTRACT_REGISTER_REQUEST, registerNanoContract),
     takeEvery(types.NANOCONTRACT_HISTORY_REQUEST, requestHistoryNanoContract),
+    takeEvery(types.NANOCONTRACT_UNREGISTER_REQUEST, unregisterNanoContract),
   ]);
 }
diff --git a/src/store.js b/src/store.js
index 937f65605..f39675617 100644
--- a/src/store.js
+++ b/src/store.js
@@ -145,7 +145,21 @@ class HybridStore extends MemoryStore {
     await super.registerNanoContract(ncId, ncValue);
     const contracts = STORE.getItem(REGISTERED_NANO_CONTRACTS_KEY) || {};
     contracts[ncId] = ncValue;
-    STORE.setItem(REGISTERED_NANO_CONTRACTS_KEY, contracts)
+    STORE.setItem(REGISTERED_NANO_CONTRACTS_KEY, contracts);
+  }
+
+  /**
+   * Unregister a nano contract.
+   *
+   * @param {string} ncId Nano Contract ID.
+   * @returns {Promise<void>}
+   * @async
+   */
+  async unregisterNanoContract(ncId) {
+    await super.unregisterNanoContract(ncId);
+    const contracts = STORE.getItem(REGISTERED_NANO_CONTRACTS_KEY) || {};
+    delete contracts[ncId];
+    STORE.setItem(REGISTERED_NANO_CONTRACTS_KEY, contracts);
   }
 
   /**
@@ -161,6 +175,7 @@ class HybridStore extends MemoryStore {
     if (cleanTokens) {
       // Remove from the cache
       STORE.removeItem(REGISTERED_TOKENS_KEY);
+      STORE.removeItem(REGISTERED_NANO_CONTRACTS_KEY);
     }
   }
 }