Standard Tuning - very easy bassline:

Main riff

   A A   A   C C B B   G G  G    B B A A
G|---------|---------|---------|---------|
D|---------|---------|---------|---------|
A|-0-0---0-|-3-3-2-2-|---------|-2-2-0-0-|
E|---------|---------|-3-3---3-|---------|

   A A   A   C C B B   G G   G   f f e e
G|---------|---------|---------|---------|
D|---------|---------|---------|-3-3-2-2-|
A|-0-0---0-|-3-3-2-2-|---------|---------|
E|---------|---------|-3-3---3-|---------|

That riff is played the most time in the song.

Be careful, sometimes (2nd part of the intro, prechorus, end of chorus, ...)
the riff ends on the last E|-3-| (G)

Bridge/Outro

   A A   A       A A   A A   A   A  a
G|---------|---------|---------|---------|
D|---------|---------|---------|---------|
A|-0-0---0-|-----0-0-|-0-0---0-|-0-12\---|
E|---------|---------|---------|---------|

Get the timing by listening.

That's it. I think this is the first tab of AP, I hope there'll come more.
Have fun.