Firebase FCM notifications not displaying the message

I have a web app where I receive firebase notification but when I send the notifications I do not get the message I am sending

This is the postman call for FCM

{
https://fcm.googleapis.com/fcm/send

    "to" : "c5oQqC5ASK8nm811tQCwqj:APA91bH4iC4vHJy-MEoTd6yfNA1k5HskI-fSzbMY8f7AB6hIWD3hTjoYfnbDCwhLlXFwvfXydWGiFY4DTDr2I6SqK-oeHdI4UTbK6reU3AHIlBxSvjkAwk4oU7zwAtY33Gcd8Ku63kVQ",
    "notification" : {
        "body" : "First Notification",
        "title": "ALT App Testing"
    }
}
{
https://fcm.googleapis.com/fcm/send

    "to" : "c5oQqC5ASK8nm811tQCwqj:APA91bHwGngSWDqvH6AKyzr2FeHV_G2BloQpbLYdua1JdMn0OzOPqgIhSIHXNptNpq-37W7dANN0pJhlBNxoR1-cyH6OeXwTU4RKK9bNZZvP_u7XJ-j7p_CQh2DTyKcVb6lzoyhUU1Un",
    "collapse_key" : "type_a",
    "data" : {
        "body" : "First Notification",
        "title": "ALT App Testing",
        "key_1" : "Data for key one",
        "key_2" : "Hellowww"
    }
}

Both above codes show me the same result how can I get this to work? enter image description here