using System;
using System.Collections.Generic;
using Newtonsoft.Json;
using Newtonsoft.Json.Serialization;

namespace ConsoleApp1
{
    class Program
    {
        public static void Main()
        {
            var cr = (IContractResolver) new CamelCasePropertyNamesContractResolver();

            var t = new Test();
            t.Dict = new Dictionary<string, string>();
            t.Dict["RLLdfdFFf"] = "fsdfsFdfds";

            Console.WriteLine(JsonConvert.SerializeObject(t, new JsonSerializerSettings()
            {
                ContractResolver = cr
            }));

            Console.ReadLine();
        }

        public class Test
        {
            [JsonProperty(NamingStrategyType = typeof(MyNamingStrategy))]
            public Dictionary<string, string> Dict { get; set; }
        }

        public class MyNamingStrategy : NamingStrategy
        {
            public MyNamingStrategy() : base()
            {
                ProcessDictionaryKeys = false;
                OverrideSpecifiedNames = true;
            }

            public override string GetDictionaryKey(string key)
            {
                return key;
            }
            protected override string ResolvePropertyName(string name)
            {
                return name;
            }
        }

    }
}