title: chrome extension licensing api/payment stuff
body: <p>When we are performing a request to get info about userlicense, we get an object which contains some properties.</p>
  
  <p>The one which I am interested in is the "createdTime" property.</p>
  
  <p>I don't want to wait a whole month just to see what might happen. I need to know if the "createdTime" property will change the next month (once the user pays another monthly fee), so we can say that each next month we have a "new license". Or is the license object always remain the same? And "createdTime" will not change even in a couple of months?</p>
  
  <p>Also, does the user gets charged automatically each month (if we go with monthly payments)? Or once the license has expired, he must pay for it again?</p>
  
  <p>Thanks in advance, any help would be appreciated much.</p>