{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "904405512",
    "entityType": "User",
    "nonce": "0xaccf9c56d75b34463f961617566da08b94314e851027fa38086339b363ae7152",
    "signature": "0x10c8ea76aff7b6a43646d7e893e28fadc0a8646d4e280148aab7df9f20a7d59f690bc5a78e7036b64e4184455ca96bdedacc6075c53c429110073da8a6dedc831b",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}