{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x3d79bf979f381bf657c044d73e2895dfa2e56e83ad9de8b0b04e170f56b05219",
    "signature": "0x7888b9efbcace1584483d2ad4f2dba80900439fb5d46d38e073662ac1e00c0c305147e7e93fc9cb9fd0ae875a3505cd2946c01d48e42277cdeaf65082953a0e91c",
    "signer": "0x63d394E88B78FF653F4FCeB0AC74Cf5b064dfC34",
    "userId": "633246973"
  }
}