{
  "jsonrpc": "2.0",
  "method": "subscription",
  "params": {
    "subscription": "0x5e6f7a8b9c0d...",
    "channel": "balance",
    "filters": {
      "address": "0xAccc...",
      "assets": [
        "USDC"
      ]
    },
    "result": {
      "asset": "USDC",
      "walletBalance": "10000.0",
      "availableBalance": "9800.0",
      "crossUnrealizedPnl": "200.0",
      "eventTime": 1710000001500
    }
  }
}