我的请求参数：

请求代码："{"offerId":"1450

489205","buyQuantity":1,"env":1,"currencyType":"CNY","productId":"MONTHLY_3990","goodsPrice":3990,"outTradeNo":"SS2026041215391120a91d","attach":""}"

signData：

"{"offerId":"1450489205","buyQuantity":1,"env":1,"currencyType":"CNY","productId":"MONTHLY_3990","goodsPrice":3990,"outTradeNo":"SS2026041215391120a91d","attach":""}"

完整的order.payment的对象如下：

{mode: "short_series_goods", paySig: "72676c36b99bcb421ee9d3909dce17ea679191f1665227998573ab1fde11ed18", signData: "{"offerId":"1450489205","buyQuantity":1,"env":1,"c…outTradeNo":"SS20260412150654c8a3ae","attach":""}", signature: "c23be11f34a6b47ce6bfa43322e185d550addf36e38e75ac31ea7f39f68e31c8"}

调用请求接口后返回err：