title: how to check parse particular filed data updated on cloud side.
body: <p><strong>I want to implement cloud code on parse. I have user class in parse and have some custom column like approve or not.</strong></p>
  <p><strong>Now i have admin side app have functionality to give approve that user.i have admin side fragment with ApproveUser  which show all details of user then have one button of approve</strong></p>
  <p><strong>Now i want to click it and change value in column approveornot of user class.</strong></p>
  <p><strong>Now i also want to send push notification to that user which was admin approve</strong></p>
  <p><strong>How can i do this.</strong></p>
  <p>I know using cloud code we do this but exactly how can i do. aftersave method how can i check that particular user field is update then i write code  for push send.</p>