{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x50f0521a55291d35b664a8c42891a370c464a3207a33ecff5adf5ff79c982635",
    "signature": "0xe20316384d4df099a773149d6f58959f7797f1da5f4b1f6014a7dc4b2e94a3eb7572dd478040fd97a4a48e52b60f01609fd62d18ce7d24f0e3590e40251699281c",
    "signer": "0xbe916820AF010608151C80f3A74F7c83218094B2",
    "userId": "881446128"
  }
}