{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x5d09e45be8dbba7d5309ce59f5a4b1ea703b13fb416744d9f71af054b390dc35",
    "signature": "0xd90477742faffd0b41724e0efd1c76781ec071b6be886d4f8c193dd594d05a2558864539b870e5084ee8f1197daf0226951bb0ebf47e16bd338223340c85c7661c",
    "signer": "0x0aDBf47013bd675d7C9bA3D46551ffaa12050241",
    "userId": "758888312"
  }
}