title: Drupal 7 - Run rule on every user triggered by cron
body: <p>Is it possible to run a rule on every user triggered when the cron runs.</p>
  
  <p>I need to check every users subscription stutus (commerce subscription module) and if the subscription has expired downgrade their role.</p>
  
  <p>I was hoping the module had this feature but apparently not.</p>
  
  <p>Can this be done?</p>