Json Result return override

   return new JsonContractResult { Data = new { data = facilityDetails }, JsonRequestBehavior = JsonRequestBehavior.AllowGet };

 ---------------------


public class JsonContractResult : JsonResult
    {
        /// <summary>
        /// Initializes a new instance of the <see cref="JsonContractResult"/> class.
        /// </summary>
        public JsonContractResult()
        {
            JsonRequestBehavior = JsonRequestBehavior.DenyGet;
        }

        /// <summary>
        /// Gets or sets the content encoding.
        /// </summary>
        /// <value>The content encoding.</value>
        private new Encoding ContentEncoding { get; set; }

        /// <summary>
        /// Gets or sets the type of the content.
        /// </summary>
        /// <value>The type of the content.</value>
        private new string ContentType { get; set; }

        /// <summary>
        /// Gets or sets the data.
        /// </summary>
        /// <value>The data.</value>
        public new object Data { private get; set; }

        /// <summary>
        /// Gets or sets a value that indicates whether HTTP GET requests from the client are allowed.
        /// </summary>
        /// <value>The json request behavior.</value>
        public new JsonRequestBehavior JsonRequestBehavior { get; set; }

        /// <summary>
        /// Enables processing of the result of an action method by a custom type that inherits from the <see cref="T:System.Web.Mvc.ActionResult" /> class.
        /// </summary>
        /// <param name="context">The context within which the result is executed.</param>
        /// <exception cref="System.ArgumentNullException">context</exception>
        /// <exception cref="System.InvalidOperationException">This request has been blocked.</exception>
        public override void ExecuteResult(ControllerContext context)
        {
            if (context == null)
            {
                throw new ArgumentNullException("context");
            }
            if (JsonRequestBehavior == JsonRequestBehavior.DenyGet && String.Equals(context.HttpContext.Request.HttpMethod, "GET", StringComparison.OrdinalIgnoreCase))
            {
                throw new InvalidOperationException("This request has been blocked.");
            }
            HttpResponseBase response = context.HttpContext.Response;
            if(response.StatusCode == 403) throw new UnauthorizedAccessException();
            response.ContentType = !String.IsNullOrEmpty(ContentType) ? ContentType : "application/json";
            if (ContentEncoding != null)
            {
                response.ContentEncoding = ContentEncoding;
            }
            if (Data == null) return;
            var jsonSerializerSettings = new JsonSerializerSettings
            {
                ContractResolver = new CamelCasePropertyNamesContractResolver()
            };
            response.Write(JsonConvert.SerializeObject(Data, Formatting.Indented, jsonSerializerSettings));
        }
    }