{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x6f87ff1bba012358a12663d9598ffc5fa9e28f839498ba667f2db58bc3d95d42",
    "signature": "0xc295ad76f1710ecafcba5b6bfcb12c128c1fa77f6cf7106009a501be8b2bbfa16348fd7c6170caff2cf96677b7579ebc4fe880fbf0b41ee654cec51f1a998fc11c",
    "signer": "0x23ebb94B5Fc841626e37a0AEa3B06dAD3A4cfB27",
    "userId": "279409147"
  }
}