{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xc0d83d515cc5a8b813a37d411f4391727bd11665e3b1ed5fa2159cc20e05ef7e",
    "signature": "0x796c5f616b9c67bcf907fa39a6875c19241f40d296187a483a4986fa031a261320acf95d2bfb20411ca1ed522be212dffa107284a1c81a0887d68d4d0b43c0e41c",
    "signer": "0x2bf645D4427C9f0AC4d35bb50a720133BD24D339",
    "userId": "333361570"
  }
}