aws cognito-idp sign-up --client-id [ClientID] --username [Username] --password [Password] --user-attributes '[{"Name":"given_name","Value":"lorem"},{"Name":"family_name","Value":"ipsum"}]'
aws cognito-idp confirm-sign-up --client-id [ClientID] --username [Username] --confirmation-code [ConfirmationCode]
aws cognito-idp get-user --access-token [AccessToken]
aws cognito-idp update-user-attributes --access-token [AccessToken] --user-attributes '[{"Name":"custom:access","Value":"admin"}]'