There is a tool available from @erikrichardlarson that can do this.
There is a very long thread split into two parts (part 2 here): Stagelinq protocol API availability? (Part 2) - #22 by mhite
The download is here: GitHub - erikrichardlarson/unbox: Log and display your rekordbox / Serato / Traktor / VirtualDJ / Denon / Mixxx tracks as they're played