{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "372473796",
    "entityType": "User",
    "nonce": "0x2cc8832e244e90224700e5a7e1891b9f026e991feca9f5a7c3bc1da47c71e863",
    "signature": "0x8ca90f29f0119e7351b2148c6a6bbef9b2e3382f138e629c39dae8c443d229f8045d9031851d2c841f97562fd3e676916f5bc4ac2a512d7cbed55b205f61a2551b",
    "signer": "0x45C682dAb9Cd8ED5e055aC2F6a860Db5F14c27C9",
    "userId": "611525840"
  }
}