[WM20] - How to prse JSON and extract info from it?

Hello,

I am try to extract information from JSON string which comes something like this:

[{"name":"titlepages\/maha_5rbixott.png","usrName":"maha.png","size":38916,"type":"image\/png","thumbnail":"titlepages\/thmaha_hm2iir2t.png","thumbnail_type":"image\/png","thumbnail_size":38916,"searchStr":"maha.png,!:sStrEnd"}]

I want to extract the name of image which in this case is - maha_5rbixott.png

TIA