MVC auth db structure

CREATE TABLE [dbo].[User](
    [Id] [int] IDENTITY(1,1) NOT NULL,
    [CreatedAt] [datetime2](7) NOT NULL,
    [DeletedAt] [datetime2](7) NULL,
    [Username] [nvarchar](50) NOT NULL,
    [FirstName] [nvarchar](256) NOT NULL,
    [LastName] [nvarchar](256) NOT NULL,
    [Email] [nvarchar](256) NOT NULL,
    [PwdHash] [nvarchar](256) NOT NULL,
    [PwdSalt] [nvarchar](256) NOT NULL,
    [IsConfirmed] [bit] NOT NULL,
    [SecurityToken] [nvarchar](256) NULL,
    CONSTRAINT [PK_User] PRIMARY KEY CLUSTERED
    (
        [Id] ASC
    )
)