MESSAGE SENT ---------------
{
  "content" : {
    "facebookToken" : "EAAS7f6SXyscBAJGrg6jvupLoRXtaZBTSQB2avZAZAtBfWiwSvYxmJrBz6h26ZAXJh3RQO3zIechsogMiliBQwjOZBufnQtTeZBseOCOw3a3618Abx2dZBQw1mCIvxbq1fLHT8iS4jxgPV19NgWtH12VB5fVLB66MZBZAlEkUW0H7vZC0N6ry8pOyEZAZB1uhFtZAKntG4ZBq1RRMCeyZC34W11fl197ToXErlqHPCZCqhYzPWAKdrgZDZD"
  },
  "ack" : [

  ],
  "message" : "auth/authFacebook",
  "timestamp" : 1488194111084,
  "seq" : 2
}

---------------------------- END

MESSAGE RECEIVED ---------------
{
  "ack" : [
    2
  ],
  "message" : "auth/authFacebookResponse",
  "content" : null,
  "timestamp" : 1488194111297,
  "seq" : null,
  "error" : {
    "type" : "validation",
    "message" : "ERR_VALIDATION_FAILED"
  }
}