The New York Times reported shortly later that the warrant sought records related to contributions, travel to Turkey by people linked to the campaign, and documents of interactions between the campaign and Turkey’s government, or people acting at its behest.
https://www.nbcnewyork.com/news/local/new-york-city-mayor-eric-adams-indictment/5823198/
There it is - he was taking money from both sides.
When I first saw "Asian Affairs", my first thought was he's in bed with China, but Turkey fits the bill.