What are the ka and kb reactions of NaHSO3 ?

I tried it out and thought it would be
ka= HSO3-(aq) + H2O(l)= H+(aq) + SO3-(aq)
kb= HSO3-(aq) + H2O(l)= H3O+(aq)+ OH-(aq)

Would that be right? or is it wrong? please can you take a look at it . Thanks.