{ "msg": "服务繁忙，请稍后重试", "code": 500, "data": null, "success": false }

回答: 根据引用\[1\]中的错误信息，错误代码为500，错误消息为"There was an error processing the request."，这表明在处理请求时发生了错误。根据引用\[2\]中的解答，可以尝试在参数的RequestParm或RequestBody中添加"required=false"，并在代码中判断clientInfo是否为空，如果为空则抛出参数错误的异常。另外，根据引用\[3\]中的发现，签名中传入signature_payload时，需要在url前面加上"/api"。根据提供的问题中的错误信息，可以看出服务繁忙，请稍后重试的错误是由于请求处理过程中发生了错误导致的。
#### 引用[.reference_title]
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