[Idiom] For what it's worth

[Jiayun]

So you find yourself at this subway


When your world in a bag by your side


And all at once it seemed like a good way


You realized its the end of your life


For what it's worth


Here comes the train upon the track


And there goes the pain it cuts to black


Are you ready for the last act?


To take a step you can't take back

I checked the dictionary for the meaning of 'For what it's worth' which is defined as follows:

Said when you are giving someone a piece of information and you are not certain if that information is useful or important

However I still could not understand what it means in the above lyrics. Does anyone have any ideas?

 

[Rover_KE]

Please state the source and author of your quotation.

 

[Jiayun]

It is one of the songs 'broadcast' in the movie Begin Again which is called A Step You Can't Take Back. The authors are John Carney, Gregg Alexander and Danielle Brisebois. Should I use the word 'broadcast' in the previous sentence?

 

[Rover_KE]

Thank you. The lack of punctuation in the lyrics makes it hard to understand their meaning.

'...one of the songs featured in the movie' would be better.