在Mailchimp API 3.0中，外来字符é导致statusCode 400

Question

当我尝试将Node.js与Mailchimp API 3.0集成时，我将带有以下正文的POST http请求发送到“ / lists / {list_id} | Batch sub / unsub list member”：

{
"members":
  [{"email_address":"testtest@qq.com",
  "status":"subscribed",
  "merge_fields":{"FNAME":"César Octavio"}
  }],
"update_existing":true
}

但得到：

{

"type":"http://developer.mailchimp.com/documentation/mailchimp/guides/error-glossary/",
      "title":"Invalid Resource",
      "status":400,
      "detail":"The resource submitted could not be validated. For field-specific details, see the 'errors' array.",
      "instance":"bae54115-1fd9-4d46-b203-775f0fdb063e",
      "errors":[{"field":"","message":"Schema describes object, NULL found instead"}]

}

我认为是“CésarOctavio”中的这个西班牙语字符é引起了问题。因为当我将其移出时，它可以正常工作。

我该如何解决？我花了整整一天的时间试图完成它，但是失败了。