{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "568518925",
    "entityType": "User",
    "nonce": "0x69ef8066b7f96721423d2380d82c4efb33acc2fd906fe3fc1747315f50bc3ecb",
    "signature": "0x70da443a4009fb6abb538f62f48dcadba7864a2afcd333305617742f42afb84a2d90936f7f9d1360b63b252f57e7538ee99fe8bbc4f192a57cbe13978a668b231c",
    "signer": "0x344Cc6Cd6326A3Fc46e2f789e02111af483Df673",
    "userId": "980331"
  }
}