取得帳戶摘要資訊

{
    "code": "200000",
    "data": {
        "level": 0,
        "subQuantity": 3,
        "spotSubQuantity": 3,
        "marginSubQuantity": 2,
        "futuresSubQuantity": 2,
        "optionSubQuantity": 0,
        "maxSubQuantity": 5,
        "maxDefaultSubQuantity": 5,
        "maxSpotSubQuantity": 0,
        "maxMarginSubQuantity": 0,
        "maxFuturesSubQuantity": 0,
        "maxOptionSubQuantity": 0
    }
}