diff --git a/app.js b/app.js
index 9df7303..ab5d819 100644
--- a/app.js
+++ b/app.js
@@ -10,7 +10,9 @@ let carouselPosition = 0;
 let startX = 0;
 let currentX = 0;
 let pushSubscription = null;
-const PUBLIC_VAPID_KEY = 'BNIXGVBzq6SNqvlDMFylw_hLTpf_J96ddbwfMa9Cn1tFQ1-vDqmz_NQS0a5UiczqAJ-uYs-6EeuwrnwaMRGtifk=';
+const PUBLIC_VAPID_KEY = 'BKfRJXjSQmAJ452gLwlK_8scGrW6qMU1mBRp39ONtcQHkSsQgmLAaODIyGbgHyRpnDEv3HfXV1oGh3SC0fHxY0E';
+const BACKEND_URL = 'https://webpush.virtonline.eu';
+const BUTTON_ID = 'your_button1_serial';
 
 // DOM Elements
 const carousel = document.getElementById('carousel');
@@ -49,12 +51,15 @@ async function subscribeToPushNotifications() {
         });
   
         // Send subscription to your server
-        await fetch('https://webpush.virtonline.eu/subscribe', {
+        await fetch(`${BACKEND_URL}/subscribe`, {
           method: 'POST',
-          body: JSON.stringify(subscription),
+          body: JSON.stringify({
+            button_id: BACKEND_URL,
+            subscription: subscription // The PushSubscription object
+        }),
           headers: {
             'Content-Type': 'application/json'
-          }
+          },
         });
   
         pushSubscription = subscription;
@@ -220,13 +225,11 @@ gameButton.addEventListener('click', () => {
             gameState = 'paused';
             audioManager.play('gamePause');
             stopTimer();
-            // sendPushNotification('Game Paused', 'The game timer has paused!');
             break;
         case 'paused':
             gameState = 'running';
             audioManager.play('gameResume');
             startTimer();
-            // sendPushNotification('Game Resumed', 'The game timer has resumed!');
             break;
         case 'over':
             // Reset timers and start new game
@@ -243,26 +246,6 @@ gameButton.addEventListener('click', () => {
     saveData();
 });
 
-async function sendPushNotification(title, message) {
-    if (!pushSubscription) return;
-  
-    try {
-      await fetch('https://webpush.virtonline.eu/flic-webhook', {
-        method: 'POST',
-        headers: {
-          'Content-Type': 'application/json'
-        },
-        body: JSON.stringify({
-          title: title,
-          body: message,
-          action: 'game_update'
-        })
-      });
-    } catch (error) {
-      console.error('Error sending push notification:', error);
-    }
-}
-
 // Timer variables
 let timerInterval = null;