title: Licence Key Android
body: <p>I must publish my Android Application on the Google Play Store, but I have one question.</p>
  
  <p>When I created a new account as developer, after the insert all the information relative my application, I received the "licence key base64 ", what is this licence?
  What I must do with this licence? Is it suggested use it ?</p>
  
  <p>Can someone tell me how implement it ? </p>
  
  <p>I have also read all the google developer documentation but I dont understand how I can implement this licence.</p>