Bots posted a new message

Sayali-MSFT Create an inbound webhook for a channel and then send this JSON to that channel. The notification will show something like the screenshot below instead of showing the summary test.

{
    "type":"message",
    "summary": "This is a test",
    "attachments":[
       {
          "contentType":"application/vnd.microsoft.card.adaptive",
          "contentUrl":null,
          "content":{
             "$schema":"http://adaptivecards.io/schemas/adaptive-card.json",
             "type":"AdaptiveCard",
             "version":"1.2",
             "body":[
                 {
                 "type": "TextBlock",
                 "text": "For Samples and Templates, see [https://adaptivecards.io/samples](https://adaptivecards.io/samples)"
                 },
                 {
                     "type": "Image",
       "url": "https://adaptivecards.io/content/cats/1.png"    
                 }
             ]
          }
       }
    ]
 }