Decode Base64 String Natively in SQL Server

I have a varchar column in a table in SQL Server that holds a **Base64-encoded** text string, which I would like to decode into its **plain text** equivalent. Does SQL Server have any **native** functionality to handle this type of thing? Here is a sample base64 string: cm9sZToxIHByb2R1Y2VyOjEyIHRpbWVzdGFtcDoxNDY4NjQwMjIyNTcxMDAwIGxhdGxuZ3tsYXRpdHVkZV9lNzo0MTY5ODkzOTQgbG9uZ2l0dWRlX2U3Oi03Mzg5NjYyMTB9IHJhZGl1czoxOTc2NA== which decodes to: role:1 producer:12 timestamp:1468640222571000 latlng{latitude_e7:416989394 longitude_e7:-738966210} radius:19764