{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0xd0158502424db5e7195688e6c4e9691129f8aacae0d5336c8112ae0a527ce70c",
    "signature": "0xc0b45328a7c27e1f3f56121f1deacad31b96234328b09ed0a29cf3216749690b3a593e2dc7e7f59491479027fcec81c496f6e342cc935ee0604f744fa034ce451b",
    "signer": "0x63d394E88B78FF653F4FCeB0AC74Cf5b064dfC34",
    "userId": "633246973"
  }
}