I've tried to send attachments like photo, voice and video in Instagram but I succeeded in voice & video not in uploading photo.

Upload photo to Facebook server

I tried uploading photo to Facebook server and I succeeded in, here's the cURL:

curl --location 'https://graph.facebook.com/v20.0/37*********4808/message_attachments?access_token=EAAON9rR********************CyKHzV' \
--form 'filedata=@"./whatsapp-cloud-api.png"' \
--form 'message="{\"attachment\":{\"type\":\"image\",\"payload\":{}}}"'

As per request I get the following response:

{
    "attachment_id": "53*********4940"
}

Send photo as a message to Instagram by attachment id

But When I tried to send message to Instagram by the attachment_id I get, using the following cURL:

curl --location 'https://graph.facebook.com/v20.0/37*********04808/messages?access_token=EAAON9rRp97********************24CyKHzV' \
--header 'Content-Type: application/json' \
--data '{
    "recipient": {
        "id": "159**********901"
    },
    "message": {
        "attachment": {
            "type": "image",
            "payload": {
                "attachment_id": "53**********4940"
            }
        }
    }
}'

As per this request I get the following response:

{
    "error": {
        "message": "Unsupported request - method type: post",
        "type": "GraphMethodException",
        "code": 100,
        "fbtrace_id": "APMZQqMefSnkK2P30rBfUTC"
    }
}

Sending message not working, hence give me Unsupported request - method type: post. Please, help me here. Thanks in advance.