Is it possible to remove a certain key from data store?

Hello.

I have a ban system in my game that uses data store. Is it possible to unban a person from the data store without un banning everyone else?

Code I have (it is part of an admin commands system)

elseif msg:lower():sub(1,4) == ";ban" then
                local obj = msg:sub(6)
                local player = game.Players[obj]
                local ds = game:GetService("DataStoreService"):GetDataStore("Moderation") 
                    ds:SetAsync(player.UserId, true)
                    wait()
                game.Players[obj]:Kick("You have been banned!")

Thanks