进行AJAX API调用的问题

Question

我正在通过AJAX进行以下API调用

$.ajax({
        url: "https://xxxxxxxxxx",
        type: "POST",
        data: {"api_key": "xxxxxxxxxxxxxxxxxxxxxxx",
        "attributes" : [{"external_id" : "3610", "quality_score" : "2"}]
                          },
                    dataType:'application/json',
                    success: function (response) {
                        console.log(response);
                    },
                    error: function(error){
                        console.log("Something went wrong", error);
                    }
                });
        }

作为回报，我得到以下错误

responseText: "{"message":"'attributes' must be an array"}"

有人知道我在这里做错了吗

谢谢。