{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "843258957",
    "entityType": "User",
    "nonce": "0x156724da8736878673f167f6f8fc9e7f12869b6b7ee3e8ff2ede5a2659458648",
    "signature": "0x96ef7960e3443e806b3696dd3799a832933ba459e20ce531706d0a1086e0ca07337cb8563996a0c551798a55a25885cf8f89f7e9eb2413d53188b522f44630fd1c",
    "signer": "0x4a4E686a6442e2Fc2495a7d4363B25c583Ea3c3a",
    "userId": "34815"
  }
}