{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0xc9a673a95403b1c69df57492d4a5ec6ae8b891de7c7e6fea1ae4a63515ac7768",
    "signature": "0x397cbb44e7438b7734de4a03a09fe233559d10c1cc2f62af8069cb8b43a142db35190ae05876990b6320a2bf994c4dffab6f7bff12cf0b8878c56614978176df1b",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}