> enable-migrations
add DbSet in IdentityModels.cs: public DbSet BankAccounts { get; set; }
> add-migration [migration-name] #eg: addBankAccounts
> update-database
private ApplicationDbContext _context = new ApplicationDbContext();
eg: adding record to table
BankAccount bankAccount = new BankAccount();
...
_context.BankAccounts.Add(bankAccount);
_context.SaveChanges();