title: Bot Framework Event for Postbacks?
body: <p>My question: </p>
  
  <p>I have an adaptive card with a postback button whose value is say "thisIsMyPostback". Now, I want to act on this postback as one would. </p>
  
  <p>The problem is that this postback can also be typed out to reach the same result. In other words, clicking the button and also just messaging my bot "thisIsMyPostback" straight up result in the same thing.</p>
  
  <p>Is there a way to separate a postback message from a 'message_received'? That way a user messaging "thisIsMyPostback" straight up would not result in the same thing as clicking the button.</p>
  
  <p>Thanks!</p>