Get default margin mode

curl --request GET \
  --url https://api.woox.io/v3/futures/defaultMarginMode \
  --header 'x-api-key: <x-api-key>' \
  --header 'x-api-signature: <x-api-signature>' \
  --header 'x-api-timestamp: <x-api-timestamp>'

{
  "success": true,
  "timestamp": 123,
  "data": {
    "rows": [
      {
        "symbol": 123,
        "defaultMarginMode": "<string>"
      }
    ]
  }
}