eBay message regarding paypal - scam?

[Marchillo]

Been away at work all day and immediately after a package got delivered i got this message through eBay.

"Hello I see your package has been delivered. Thanks for the purchase! If you could please do me a huge favor and go to paypals website (not the app) and click on activity then the original purchase and mark that you received your package that way paypal will release the funds to my account instantly if you can't then i have to wait 3 more days. That would help me a lot! Thanks again have a great day!!!"

This message came before I got the message that the package was delivered. I got the same exact message at 4:20 PM.

Is this some sort of scam? This has never happened to me. Or is this person really trying to get his hands on the money.

I'll be getting the package in about an hour - Hopefully the package isn't empty!

Any advice?

edit to say - this seller doesn't have a lot of feedback but its all positive - 29 in the last 30 days and this is only a $30 item. Not a lot of risk here for me. I'm sure its fine but very strange.