title: Notify user when next time user login in Laravel 5.4 Application
body: <p>I am looking for a solution to notify all the users for occurrence of X activity in the app.</p>
  
  <p>I am not looking for notification by mail or sms. Because this specific notification would be send to all the users, which could be anywhere between 1000 to 25000 users. sending 1000s of mail or sms is waste of resources.</p>
  
  <p>I want to notify users using something which goes noticed, that is they would read. for example: if the X activity has happened today. And Y user logins after 10 days he/she must be able to see the notification (I guess flash message wont work in this case).</p>
  
  <p>What is the best and most efficient way possible? if notification using database is the way that I think. How can I create a single notification (single entry in database) and make sure all the users read that notification next time login? without creating 1000s of rows?</p>