using System;

using Newtonsoft.Json.Linq;

public class Program

{

    public static void Main(string[] args) {

        var json = @"[{

                        ""assignedto"": ""MAIN ST (HUB) STAFF"",

                        ""createduser"": ""API-7127"",

                        ""departmentid"": ""1"",

                        ""observations"": [{

                            ""abnormalflag"": ""abnormal"",

                            ""analytename"": ""HGB A1C"",

                            ""value"": ""5""

                        }],

                        ""pages"": [],

                        ""priority"": ""2"",

                        ""status"": ""REVIEW""

                    }]";

        Rootobject resultObj = JToken.Parse(json).ToObject<Rootobject>();

    }

}

​

public class Rootobject

    {

        public Class1[] Property1 { get; set; }

    }

​

    public class Class1

    {

        public string assignedto { get; set; }

        public string createduser { get; set; }

        public string departmentid { get; set; }

        public Observation[] observations { get; set; }

        public object[] pages { get; set; }

        public string priority { get; set; }

        public string status { get; set; }

    }

​

    public class Observation

    {

        public string abnormalflag { get; set; }

        public string analytename { get; set; }

        public string value { get; set; }

    }