{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "41804",
    "entityType": "User",
    "nonce": "0x14a4b64f9c959e6dcee16d9d0afd8b1a4429f52d713272a900a21c7a2f0bb53a",
    "signature": "0x4f4f4a1a06541a198723337cbb6ae510037086c1a1127732a211f212c470451f44a3b0d095e3dc10b5131b6c4ec9cb4f8d25e98a9c8c0a390912bbe2334dc8371c",
    "signer": "0x4B140b61EB41438Cda0Dd10473ad1334309C1b97",
    "userId": "45511108"
  }
}