diff --git a/consumer_api/views/sync_view.py b/consumer_api/views/sync_view.py
index a6f8eb5..1b034f1 100644
--- a/consumer_api/views/sync_view.py
+++ b/consumer_api/views/sync_view.py
@@ -1,4 +1,5 @@
 import json
+import time
 from flask import request, current_app, jsonify
 from flask_classful import FlaskView
 from db import redis_client  # ez nagyon otvar
@@ -10,20 +11,25 @@ class SyncView(FlaskView):
         remote_uuid = request.json['uuid']
         remote_ip = request.remote_addr
 
-        consumer_list = json.loads((redis_client.get("consumer_list") or b"{}").decode('utf-8'))
+        cust_key = f"customer_{remote_uuid}"
 
-        # Log something about it
-        if remote_uuid not in consumer_list.keys():
+        last_known_info = json.loads((redis_client.get("cust_key") or b"{}").decode('utf-8'))
+
+        if not last_known_info:
             current_app.logger.info(f"New consumer registered (unknown UUID): {remote_uuid} at {remote_ip}")
-        else:  # known
-            if consumer_list[remote_uuid]['ip'] != remote_ip:
+
+        else:
+            if last_known_info['ip'] != remote_ip:
                 current_app.logger.info(f"Address of consumer {remote_uuid} changed to {remote_ip}")
 
-        consumer_list.update(
-            {remote_uuid: {"ip": remote_ip}}
-        )
+        info = {
+            "uuid": remote_uuid,
+            "ip": remote_ip,
+            "last_seen": time.time()
+        }
 
-        redis_client.set("consumer_list", json.dumps(consumer_list).encode('utf-8'))
+        redis_client.set(cust_key, json.dumps(info).encode('utf-8'))
+        redis_client.expire(cust_key, 30)
 
         response = {
             "uuid": current_app.config['LOCAL_UUID']