MoCA on Xfinity

I know it’s possibly, possible. But I have no clue what I’ll need or how to do it. 

my home is coaxial wired. I have a new “10g” (white tower) modem from Xfinity (800mbps /unlimited GB plan) in a bedroom connected to coaxial cable. 

I'm unable to run an Ethernet from the modem to my PlayStation. However, I have a coaxial outlet in the living room (which is not in use, but draws internet) I asked a Xfinity rep if it was active and if it was MoCA compatible and they said yes. 

I read a post of someone wanting to do the same thing. @EG helped them. I’m not tech savvy. Is this possible and what would I need to buy?

my thought process is a splitter(?) or “converter” and wire it to my coaxial cable and it would have a port for an Ethernet cable. I’d then just run an Ethernet from that to be able to plug it and essential “hardwire” my PlayStation.