{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "143858",
    "entityType": "User",
    "nonce": "0x1835b85720bbbd68ce0ff664c0c34fea8545ecb3793dfdad7c1128891f02aa3c",
    "signature": "0xde67cd6530c7f1fe2bc161e343f9559044db4defff6c270849a1d3bfef94fef63788d71948dad0a0fad0ce8664c73c18b18d7a936b71d198d38ed4097fb110771c",
    "signer": "0x0251F693d1B18216113f36EA90d754E0f03C1f0c",
    "userId": "233929270"
  }
}