public static T FromBytesJSON<T> (byte[] arrBytes) {
     return FromString<T>(FromBytes<string>(arrBytes));
}

public static T FromString<T> (string text) {
     return JsonConvert.DeserializeObject<T>(text , GetSettings());
}

public static T FromBytes<T> (byte[] arrBytes) {
     if (arrBytes == null || arrBytes.Length < 1)
     return default(T);

     BinaryFormatter binForm = new BinaryFormatter();
     T obj = (T)binForm.Deserialize(new MemoryStream(arrBytes));

     return obj;
}

public class Main{
    public static void main(string[] args){ //enter point
         TestHandler th = new TestHandler();
         th.onTest += OnTest;
         th.Test();
    }

    private static void OnTest(string value){
         Console.Write(value);
    }
}

public class TestHandler{
    public event Action<string> onTest = delegate {};

    public void Test(){
         onTest.Invoke("kek");
    }
}

    IEnumerator WWWSaveWallPhoto (string photo, string server, string hash) {
  string method = string.Format (SAVE_WALL_PHOTO, photo, server, hash, accessToken);

  Debug.Log (string.Format ("WWWSaveWallPhoto (photo: {0}, server: {1}, hash: {2}, method: {3}", photo, server, hash, WWW.EscapeURL (method)));

  byte[] postData = Encoding.UTF8.GetBytes (WWW.EscapeURL (method));
  WWW www = new WWW (WWW.EscapeURL (method), postData);

  yield return www;
  while (www.isDone == false)
   yield return null;

  Debug.Log (string.Format ("WWWSaveWallPhoto (text: {0}, error: {1}", www.text, www.error));

  if (saveWallPhoto != null) {
   saveWallPhoto.Invoke (www.text);
   saveWallPhoto = null;
  }
    }