{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "488430169",
    "entityType": "User",
    "nonce": "0x1fafc74c602a53e32fab5287ca73a7098c7a75010c8977979d1c336328d35b67",
    "signature": "0x5b1ee284e6dd797c6ee6bdccad71c2d37d153cd0fcd56d81b3e288c222fd74650935a8b3101d4552c0f3aea586b407bbead35bde6733f65fb5f548b39776f0711b",
    "signer": "0x8c3aa6cf594458763078BFd2ef8282051A8DBC16",
    "userId": "576672259"
  }
}