Entity Framework Core jsonb column type

Based on H. Herzl comment:

My final solution was something like this:

public class MyTableClass
{
    public int Id { get; set; }

    [Column(TypeName = "jsonb")]
    public string Data { get; set; }
}

Migrations generated this:

Data = table.Column<string>(type: "jsonb", nullable: true),

When updated the database with migrations, the Data column was created correctly with jsonb type.