Pretty simple bass line, all are quarter notes.

Bass comes in at 1:44

G|-----------------|-----------------|-----------------|-----------------|
D|-----------------|-----------------|-----------------|-----------------|
A|-----------------|-2---2---2---2---|-5---5---5---5---|-----------------|
E|-3---3---3---3---|-----------------|-----------------|-2---2---2---2---|

Songs builds up till the end, so it's a good bit of practise for your plucking hand.

Enjoy!