以下是服务端的接口文档，请问该请求如何用ajax写出来？

分类：MUI

类型：post
url: http://121.21.176.140:8080/bull/server/resources
请求：createUserRequestMsg
响应：responceMsg

请求样例:
{
"reqquestHeader": {
"resource": "user",
"actionType: "createUser"
},
"requestBody": {
"user": {
"type": "0",
"mobile": "123456789",
"password": "123456"
},
"isRewardPoint": "0",
"msgAuthCode": "AbCd"
}
}