sign_data = {
    "mode": 'goods',
    "offerId": offer_id or '1450126344',
    "buyQuantity": 1,
    "env": env,  # 0：现网环境 也叫正式环境 1：沙箱环境
    "currencyType": 'CNY',
    "platform": 'android',
    "zoneId": '1',
    "productId": product_id or 'diamond_1004',
    "goodsPrice": int(price) * 100,  # 单位（分）
    "outTradeNo": order_id,
    "attach": ''
}