using System;

using System.Linq;

using System.Xml.Linq;

using System.Xml.Serialization;

using System.IO;

using System.Text;

public class Program

{

    public static void Main()

    {

        var response = FromXml<expired_subscription_notification>(ExpiredSubscriptionNotifcation);

        Console.WriteLine(response.account.email);

        Console.WriteLine(response.account.FirstName);

    }

    public static T FromXml<T>(string xml)

    {

        var xmlSerializer = new XmlSerializer(typeof(T));

        return (T)xmlSerializer.Deserialize(new MemoryStream(Encoding.UTF8.GetBytes(xml)));

    }

    public class account {

        public string account_code { get; set; }

        public string email { get; set; }

        [XmlElement("first_name")]

        public string FirstName { get; set; }

    }

    public class subscription {

        public string uuid { get; set; }    

    }

    public class expired_subscription_notification {

        public account account { get; set; }

        public subscription subscription { get; set; }

    }

    const string ExpiredSubscriptionNotifcation =

        @"

        <expired_subscription_notification>

              <account>

                <account_code>auth0|562e651d4ad51f24201c38a8</account_code>

                <username></username>

                <email>t3509trial3@test.com</email>

                <first_name>Test 3509 #3</first_name>

                <last_name>Trial</last_name>

                <company_name></company_name>

              </account>

              <subscription>

                <plan>

                  <plan_code>delivery-trust-monthly</plan_code>

                  <name>Delivery Trust™ Monthly</name>

                </plan>

                <uuid>3214063d57b4f024c4dc9545f1a84426</uuid>

                <state>expired</state>   

              </subscription>

        </expired_subscription_notification>";

}

​