Create PostmarkClickWebhookMessage

src/Postmark/Model/PostmarkClickWebhookMessage

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+using PostmarkDotNet.Model;
+using System;
+using System.Collections.Generic;
+
+namespace PostmarkDotNet.Webhooks
+{
+	/// <summary>
+	/// Representation of the payload of the click tracking webhook
+	/// </summary>
+	public class PostmarkClickWebhookMessage : PostmarkClick
+	{
+		/// <summary>
+		///   The time the click was received by the Postmark servers.
+		/// </summary>
+		/// <value>The time the click was received</value>
+		public DateTime ReceivedAt { get; set; }
+
+		/// <summary>
+		/// The tags users add to emails
+		/// </summary>
+		/// <value>The specific tag string</value>
+		public string Tag { get; set; }
+
+		/// <summary>
+		/// The email address of the recipient who opened the email.
+		/// </summary>
+		/// <value>Email address of the recipient</value>
+		public string Recipient { get; set; }
+
+		/// <summary>
+		/// The metadata for the opened message.
+		/// </summary>
+		public Dictionary<string, string> Metadata { get; set; }
+	}
+}