{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "102143",
    "entityType": "User",
    "nonce": "0x470be782efac7934bb9d39e62cf1fa2d024e1ecf706451bd2cde59d6b86e4243",
    "signature": "0xb769ab492f374c981df8a102a6fbe4032c25910ae6e411aae726e2f20ec5529714d596a4f4a3c236eb6d96c95d178752661fae582b623e243582400a5f1e9aaf1b",
    "signer": "0x8a00C8AA0E527C89447B001f7dE52D1208cb42f8",
    "userId": "329595354"
  }
}