{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x479e12bf541fbc0ea29ebf8f5614f60e2e423228fb47fca5270fd773b6739e46",
    "signature": "0xcfc2fb5f7292caa4185a30206d6774c58805b5b1ccdc141482b0e6bcdc545f604ca4e823387f12bbe1ab4e2290bd93378eefe592146211080eb26ead262f3f261c",
    "signer": "0xe1eAe9Fa3Fef187944BA6cBa5C534e1ea257CA4E",
    "userId": "344552512"
  }
}