{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1655515",
    "entityType": "User",
    "nonce": "0x6eeae6eb5692e9fd6b7ca7e83469f5b9b1e1fd03c528200731cd14367c54e4d8",
    "signature": "0x463b1be3f279634a7072fa7049c9c175941bab37a086f6c56a7b7e6f5a6cee876221e955fe330d27d299bea43fb3e92dd3b90ba706597376989bf8b84a49e4be1c",
    "signer": "0x40E8E224E8F8a9f835e4dc8851Da72DCEd75986F",
    "userId": "504092010"
  }
}