I'm pretty sure this is the real bass line of this song, different from what we normally see on the other tabs, which is the same as the guitar line of this amazing song! Just listen to figure out the rhythm and the time! Please rate this tab and have fun! 

Intro
G|--------------------|----------------------|-------------------|
D|-------------------6|--8~----6-----8~------|-----------------6-|
A|---------------6-8--|------8---8--------888|-/8----/8-----6-8--|
E|--1--1--1--6-8------|6-----------6---------|-----1-----6-8-----|

Verse 
G|------------------|
D|--------------6---|
A|-8---6-----6-8----|
E|---1----6-8-------|

Bridge
G|-------------------------------------------|
D|----6------8~-------------6------8~--------|
A|-----8----x----------------8----x--------6-|
E|-6----6~-------x0-4-5-6-----6~------x6-8---|

Chorus                                         1st End           2nd End
G||------------------------------------------||--------|------------------|
D||----6-----------------------6-------------||--------|------------------|
A||--8--(8)-(6)----6/8-----6-8--(8)-(6)--6h8-||-----6--|--8~~~----------6-|
E||-------------8~------6-8-------------8----||-x6-8---|-------8~~~-x6-8--|

Variation
G|---------------------|
D|-----------------6---|
A|-/8---/8-----6-8-----|
E|----1----6-8---------|


Post-Chorus
G|------------------------------------------------------|
D|----------------6-----8~---6--------------8~----------|
A|-/8---/8-----6-8---------8---8---------4-----888------|
E|----1----x6-8-------6----------6--x0-4---6------------|

Structure of the song:

Intro
Verse 2x
Bridge
Chorus (End 1)
Chorus (End 2)
Variation
Verse 2x
Brigde
Chorus (End 1)
Chorus (End 2)
Post-Chorus 2x
Variation
Verse 2x
Brigde
Chorus (End 1)
Chorus (End 2)
Post-Chorus until the end, fade out.