anchor.diff:  + Request (application/json)
       + Headers
       
  -            Authorization: Basic base64(TRANSFER_TOKEN)
  +            Authorization: Basic base64(TRANSFER_TOKEN:)
               
       + Attributes(object)
           + code: 3382837 (string) - OTP code that was sent to peer's device.
  
positive.code: + Request (application/json)
      + Headers
      
              Authorization: Basic base64(TRANSFER_TOKEN)
      
      + Attributes(Transfer)
  
  + Response 200 (application/json)
      + Attributes (Response_OK)
          + meta (Response__Meta)
          + data (Transfer_FullWithAuth)
  
  ### Authentication [POST /transfer/{id}/auth]
  
  #### For 3-D Secure Cards
  
  
negative.code: + Request (application/json)
      + Headers
      
              Authorization: Basic base64(CLAIM_TOKEN:)
              
      + Attributes(object)
          + code: 3382837 (string) - OTP code that was sent to peer's device.
  