using System;

using System.Collections.Generic;

using Newtonsoft.Json;

public class Program

{

    public static void Main()

    {

        var config = new

        {

            boxAppSettings = new []

            {

                new

                {

                    clientId = "blah1",

                    clientSecret = "blah2",

                    appAuth = new []

                    {   

                        new {

                            publicKeyId = "blah3",

                            privateKey = "blah4",

                            passphrase = "blah5",

                        }

                    },

                    //enterpriseID = "blah6"

                }

            },

            enterprise = "blah 6"

        };

​

        string json = JsonConvert.SerializeObject(config);

​

        Console.WriteLine(json);

    }

}

​