Linq Where JsonSerialization not working

Hey, is there a way to get the following running:

dbSet.Set<Table>().Where(x => JsonSerializer.Deserialize<Object>(x.Value).Number1 == localGivenNumber).ToList();

dbSet.Set<Table>().Where(x => JsonSerializer.Deserialize<Object>(x.Value).Number1 == localGivenNumber).ToList();

I am getting the error an expression tree cannot contain a call or invocation that uses optional arguments

Linq Where JsonSerialization not working - C#