curl --request GET \
  --url https://api.perpo.trade/v1/client/holding \
  --header 'perpo-account-id: <perpo-account-id>' \
  --header 'perpo-key: <perpo-key>' \
  --header 'perpo-signature: <perpo-signature>' \
  --header 'perpo-timestamp: <perpo-timestamp>'

{
  "success": true,
  "data": {
    "holding": [
      {
        "updated_time": 1580794149000,
        "token": "USDT",
        "holding": 282485.071904,
        "frozen": 0,
        "pending_short": -2000,
        "isolated_margin": 0,
        "isolated_order_frozen": 0
      }
    ]
  },
  "timestamp": 1702989203989
}