Swagger-api i c# formatering

{
 "times": [
 { 
   "ruleId":1631,
   "start": "2018-12-04T12:00:00"
  }
 ],
 "guests":2,
 "contact": {
  "fname": "Test",
  "lname": "Testosson",
  "mobile": "07000000001",
  "email": "example@gmail.com",
  "vip": true
 }
}

            string data = "{\"times\":\"[\", " +
                "\"ruleId\":1631" +
                "\"start\":2018-12-04T12:00:00" +
                "}" +
                "], " +
                "\"guests\":2" +
                "{\"contact\":\"{\", " +
                "\"fname\":Test" +
                "\"lname\":Testosson" +
                "\"mobile\":07000000001" +
                "\"email\":example@gmail.com" +
                "\"vip\":true" +
                "}" +
                "}";