Xamamrin form : How to recieve notification from firebase console with image

I want to send notification to device token from firebase console with image, for example notification should be display like this.
Title
Body
Image // here is the issue i want to display image from url now when i get notification now i get url how i can convert url and display image.

My code for send notificaiton is this and i am sending from POSTMAN

{ "data":{
     "title":"New Notification!",
     "body":"Test\",
     "user_id": "1234",
        "image": "http://pngimg.com/uploads/google/google_PNG19645.png"
 },
"to" : "device_token" }

here is the image for notification i am currently getting and you can see clearly that i am getting url instead of image