squeaking sound when push against it

Hi all, I have old prius 2013. I noticed when I push the car a bit while it's parked, it makes a squeaking sound kind like when you are jumping on an old mattress. I don't notice any sound while I am driving or over speed bumps. This is my spare car and don't use much. Rather not spend money on it if I don't have to. Just wondering is it something I need to worry about? I also uploaded a video below, may have to turn up the volume and sound is very low. Not letting me include the link, please remove extra space below.


https:// ufile.io /086gnhmn