I'm not from Nigeria so Nigerians feel free to correct me, I'm just going off what my university requires for Nigerian international students instead of A-Levels.
West African Senior School Certificate OR NECO Senior School Certificate, but if you do one of those you have to do an additional course (could be A-Levels, the IB, or a foundation course).
Alternatively, there's the National Diploma, then if there are subject-specific requirements the university will test that individually.
So I think there aren't exact 1-to-1 crossovers.