PromotionDetailInfo

{
    "promotionId": "string",
    "promotionDesc": "string",
    "promotionType": "string",
    "purchaseLimitInfo": {
        "limitNumber": 0,
        "canPurchaseNumber": 0,
        "purchasedQuantity": 0
    },
    "startTime": "string",
    "endTime": "string",
    "promoPrice": 0,
    "supplyPrice": 0
}