It's not a spot on match, but Codec Pro Ultra is very close.

There are a vast number of signature fonts - many of which have a similar quality
https://www.dafont.com/search.php?q=signature&text=Southside&fpp=100&psize=l

Hmm. I'm doubtful this is a font - do you need an exact match?

Looks like Cooper Black Italic, but not sure whether that's an alternate N or modified.

Looks like Briller