{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "938519346",
    "entityType": "User",
    "nonce": "0xdf490bf67a7eafc6fde83d656ecb49ea72e628a5b57fb3f1f423a1da8bd9dc46",
    "signature": "0x446432a4ab5affcac5e43bf4857dd2097f2aa4f0fc3b2ce1d2e26ce8fcfde87b2f77266f8d5bf55b887428a6af38860bfd34599840c3cc32fc2d17cf3db4b9c21c",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}