{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1579",
    "entityType": "User",
    "nonce": "0xbdc8cdb24896db6524e7fef2457908154c8928463adde178ba32941cd3cae87c",
    "signature": "0xac1f579d71a3dd57d30535b2509b03d9f5e1c2e971470ea0446826bf9c3e16034a36d1e2f8acbf0c72cae9758ad06e82963fa4cfda7b079b4d340ffa733c343a1c",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}