Распарсить JSON ответ от вконтакте

https://api.vk.com/method/likes.isLiked?owner_id=&item_id=&type=photo&access_token=

     WebResponse response = request.GetResponse();
                Stream dataStream = response.GetResponseStream();
                StreamReader reader = new StreamReader(dataStream);
                string responseFromServer = reader.ReadToEnd();
                reader.Close();
                response.Close();
                responseFromServer = HttpUtility.HtmlDecode(responseFromServer);

{"response":1}

{"response":{"liked":1,"copied":0}}

public class JSON_Response
        {
            public int liked { get; set; }
            public int copied { get; set; }
        }

System.IO.StreamReader sr = new System.IO.StreamReader(response.GetResponseStream());
 
var a = sr.ReadToEnd();
string result = System.Text.RegularExpressions.Regex.Unescape(a);
var parsed = JsonConvert.DeserializeObject<JSON_Response>(result);

using Newtonsoft.Json.Linq;
 
//
responseFromServer="{"response":{"liked":1,"copied":0}}";
var obj = JToken.Parse(responseFromServer);
int? liked=obj?["response"]?["liked"]?.Value<int>();
if(liked!=null){
 int allLike+= (int)liked;
}

System.IO.StreamReader sr = new System.IO.StreamReader(response.GetResponseStream(), Encoding.Default);
var parsed = JsonConvert.DeserializeObject<JSON_Response>(sr.ReadToEnd());