Add Schedule property to SendNotificationData

src/StoneRed.NetificationApi.Example/Program.cs

@@ -83,6 +83,7 @@ Console.WriteLine("Send notification");
 SendNotificationData sendNotificationData = new SendNotificationData
 {
     NotificationId = notificationId,
+    Schedule = DateTime.Now.AddSeconds(10),
     User = new NotificationUser
     {
         Id = userId

src/StoneRed.NetificationApi/Server/Send/SendNotificationData.cs

@@ -37,6 +37,11 @@ public class SendNotificationData
     /// </summary>
     public Dictionary<string, string>? Replace { get; set; }
 
+    /// <summary>
+    /// Gets or sets the time when the notification should be scheduled.
+    /// </summary>
+    public DateTime? Schedule { get; set; }
+
     /// <summary>
     /// Gets or sets the options for the notification.
     /// </summary>