(Of note: as of charts dated Nov. 5, SoundCloud plays now contribute to the streaming data that informs the Hot 100 and other genre hybrid songs charts, in addition to the consumption-based Billboard 200 albums chart. Additionally, Amazon Music Unlimited Streams now count toward Amazon's overall chart contributions, along with streams from the Amazon Prime service, which has long been part of the chart panel.)
I assume they mean SoundCloud's new paid streaming service.