using System;

using System.Collections.Generic;

using Newtonsoft.Json;

public class Program

{

    public static void Main()

    {

         var jsonObject = new Newtonsoft.Json.Linq.JObject();

​

            var jArr = new Newtonsoft.Json.Linq.JArray();

​

            for (int index = 0; index < 2; index++)

            {

                var orderLine = new Newtonsoft.Json.Linq.JObject()

                {

                    { "lineNumber", index+1 },

                    { "intentToCancelOverride", false },

                    { "sellerOrderId", DateTime.Now.Ticks.ToString() },

                    { "orderLineStatuses", new Newtonsoft.Json.Linq.JObject

                        {

                            { "status", "Shipped" },

                            { "trackingInfo", new Newtonsoft.Json.Linq.JObject

                                {

                                    { "shipDateTime", 1580821866000 },

                                    { "carrierName", new Newtonsoft.Json.Linq.JObject

                                        {

                                            { "carrier", "UPS" }

                                        }

                                    },

                                    { "methodCode", "Standard"},

                                    { "trackingNumber", "22344"}

                                }

                            }

                        }

                    }

                };

                jArr.Add(orderLine);

            }

​

            jsonObject["orderLine"] = jArr;

​

​

​

            string json = JsonConvert.SerializeObject(jsonObject);

​

        Console.WriteLine(json);

    }

}

​

​