anchor.diff:  
     # Update the current logged in user.
     updateMyUserProfile(input: UpdateMyProfileInput!): UpdateMyProfilePayload
  +
  +  # Update notification preferences.
  +  updateNotificationPreferences(
  +    input: updateNotificationPreferencesMutationInput!
  +  ): updateNotificationPreferencesMutationPayload
     updateSavedSearch(input: UpdateSavedSearchInput!): UpdateSavedSearchPayload
     updateSmsSecondFactor(
       input: UpdateSmsSecondFactorInput!
  
positive.code:   bio: String
    collectorLevel: Int
  
    # List of artists names the Collector is interested in
    collectorProfileArtists: [CollectorProfileArtists]
    confirmedBuyerAt(
      format: String
  
negative.code:   userOrError: UpdateMyProfileMutation
  }
  
  input updateNotificationPreferencesMutationInput {
    authenticationToken: String
    clientMutationId: String
    subscriptionGroups: [NotificationPreferenceInput!]!
  }
  
  type updateNotificationPreferencesMutationPayload {
    clientMutationId: String
  }
  
  # Autogenerated input type of UpdateSavedSearch
  input UpdateSavedSearchInput {
    attributes: SearchCriteriaAttributes
  