{
  "address": "0xA12b3c4d5e6f7890abcdef1234567890a1b2c3d4",
  "accountValue": "80.01",
  "totalMarginUsed": "29.07",
  "withdrawable": "50.94",
  "positions": 3,
  "positionDetails": [
    { "coin": "BTC",  "szi": "0.00413", "uPnl": "1.49" },
    { "coin": "ETH",  "szi": "0.089",   "uPnl": "0.39" },
    { "coin": "HYPE", "szi": "15.78",   "uPnl": "4.35" }
  ],
  "lastUpdate": "2026-07-04T13:05:28Z",
  "source": "manual-baseline",
  "note": "First reference snapshot — future diffs measured against this"
}