{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "270209897",
    "entityType": "User",
    "nonce": "0x28bd89cdc6322950e627b7b9edb67965fb897787706031ac24cfc674521c4ae2",
    "signature": "0x0a3acbcc92fd40e0c3101ce54ae86df5ceaa813a1fbb001335930476ddcf3f64673f3453251f49188f78a87705776397f92029fe0bae64e74c40de73cf4c37561c",
    "signer": "0x793bbEFbb3Cf1e6529B90296e502145aCcCDE8d6",
    "userId": "838777725"
  }
}