{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "330481",
    "entityType": "User",
    "nonce": "0x60842811d941163fa63a9d03376e62b67c344d91407836ac7dc73e8698a9d7b9",
    "signature": "0xb190e8b8e68e888efe5dc30b6c3a21e74906d3b3a08a36e3b45529e70c86f5df35adcc1303517eb7e36c6a162bdceaca394267076ba787a7f9b07be9fc1fc48b1b",
    "signer": "0x5fa60F185681545769de01098bB8F29cfbaE3cF0",
    "userId": "489026160"
  }
}