Can't get image from telegram bot

Hello everybody. I am doing a telegram bot. Users send an image to my bot, then bot sends to the server via api node. I set image data type to my image variable. The problem is that I get wrong url of the image and can't see what users send me. My main purpose is to get image from my telegram bot users. Here json that I get:

{"url":"AgADAgADqqcxG9EGoUmMYaD4FEfSV-latw0ABO2m7lTnzSiTwYsAAgI","width":2480,"height":2480,"caption":"","attribution":{"iconUrl":"","name":""}}

I just want to know what I get? How to fix this? Any ideas? Thanks!