{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "251854",
    "entityType": "User",
    "nonce": "0x227fb647dc5f4c126e6c3f427c20074cf0bb51ac46907bd48b54d299154ce9cf",
    "signature": "0xfea5284d37d43c8d5a3c129f8491077fdb4fea2f4aa17156c3d32de39b088a500481816f55cb6b2e94cc1a0370329b8db7c50ae5b2bb4f2b80b84607cb92fda21c",
    "signer": "0xdEc12eC3F7972dB51907501aF18eb17FBa37a413",
    "userId": "211416595"
  }
}