Jquery 将CURL转换为AJAX请求

我需要将下面的CURL请求转换为AJAX

CURL : $ curl -X POST http://textbelt.com/text -d number=5551234567 -d "message=I sent this message for free with textbelt.com"

我编写的AJAX请求如下：

$.ajax({
    type: 'post',
    url: "http://textbelt.com/text",        
    data: "number=+1********** message='This is a test message!",           

    success:function(response)
    {
        console.log("Success!!");
    },

    error : function(xhr, status, error)
    {
        console.log("Status of error message" + status + "Error is" + error);
    }   

});

我从服务器得到的响应是：

    {
       "success": false,
       "message": "Number and message parameters are required."
    }

谁能给我指一下正确的方向吗

$.ajax({
type: 'post',
url: "http://textbelt.com/text",        
data: {"number":"+1**********", "message":"This is a test message!"},           

success:function(response)
{
    console.log("Success!!");
},

error : function(xhr, status, error)
{
    console.log("Status of error message" + status + "Error is" + error);
}   

});

上述措施应该有效