{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x72e35be79abef96d23949c7a94cc62e8cabb6aa37cbe966902f1b88c6463d3af",
    "signature": "0xcc9623780a46747756db34a8c739068afca6116e6bfbd8c5bd435189522d1014290ca75b3c1449962c1f973cee16d3b116ee70baf59802e18d7e8cc0b5b80b7a1b",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}