{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "wallet_getSubAccounts",
  "params": [{
    "account": "0x1234567890123456789012345678901234567890",
    "domain": "https://app.example.com"
  }]
}

{
  "id": 1,
  "jsonrpc": "2.0",
  "result": {
    "subAccounts": [
      {
        "address": "0x2345678901234567890123456789012345678901",
        "factory": "0x1234567890123456789012345678901234567890",
        "factoryData": "0x1234567890123456789012345678901234567890"
      }
    ]
  }
}