How to get messageBack working when posting channel message thru graph api

[loloj]

I'm using api https://graph.microsoft.com/v1.0/teams/myteamid/channels/mychannelid/messages to post a message with adaptive card attached on behalf user right.

const url = https://graph.microsoft.com/v1.0/teams/myteamid/channels/mychannel/messages
const card = {
"type": "AdaptiveCard",
"version": "1.2",
"body": [
{
"type": "TextBlock",
"text": "messageBack Button"
}
],
"$schema": "http://adaptivecards.io/schemas/adaptive-card.json",
"actions": [

    {
        "type": "Action.Submit",
        "title": "messageBack",
        "data": {
            "msteams": {
                "type": "messageBack",
                "displayText": "I clicked this button",
                "text": "text to bots",
                "value": "{\"bfKey\": \"bfVal\", \"conflictKey\": \"from value\"}"
            }
        }
    }
]

}

const payload = {
"subject": null,
"body": {
"contentType": "html",
"content": "<attachment id="idfortest">"
},
"attachments": [{
"id": "idfortest",
"contentType": "application/vnd.microsoft.card.adaptive",
"contentUrl": null,
"content": JSON.stringify(card),
"name": null,
"thumbnailUrl": null
}]
}

Card is well displayed in team channel but when i click on button messageBack nothing happens !

How can I receive answer message ?

note: imBack and openUrl is working