using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

using Newtonsoft.Json;

using Newtonsoft.Json.Linq;

​

namespace ConsoleApp16

{

    public class Program

    {

        public static void Main(string[] args)

        {

           var json = @"[

                  {

                    'id': 114792,

                    'attributes': {

                      'priority': 0

                     }

                   },

                  {

                    'id': 114792,

                    'attributes': {

                      'priority': 0,

                      'event': 0

                    }

                   },

                   {

                    'id': 114793,

                    'attributes': {

                      'priority': 0,

                      'event': 0

                     }

                   }

                ]";

​

            var jsonOb = JArray.Parse(json);

            var re = jsonOb.Select(x => x.ToObject<JObject>()).Where(x => x["attributes"]["event"] != null && (int)x["attributes"]["event"] == 0).Count();

            Console.WriteLine(re);

        }

    }

}