i usually jam off of a B scale during this song and this is the one i use as a base:

G|------------13-14-16|
D|---13-14-16---------|
A|14------------------|
E|--------------------|

and here is the bass line after each line in the verse

G|------------[triplet]--13-14|
D|---------13--16-16-16-------|
A|--14--14--------------------|
E|----------------------------|

lesh also plays that line at different octaves at different points in the song, so just 
to figure it out