using System;

using System.Linq;

using Newtonsoft.Json.Linq;

public class Program

{

    public static void Main()

    {

        string json = @"

            [             

                ""8c316aca-b930-421f-851c-17d618b61fa1"",

                ""8c316aca-b930-421f-851c-17d618b61fa1"",

                ""a23shaga-2wd3-fky6-851c-43524fbfgsa""

            ]";

        JArray jArray = JArray.Parse(json);

        var x = jArray.ToObject<string[]>().Distinct();

        Console.WriteLine(string.Join("\n", x));

        //Console.WriteLine(x.GetType());

    }

}