ImageProcessRequestConsumer.cs

public class ImageProcessRequestConsumer : IConsumeAsync<ImageProcessRequest>
{
	Command command = new Command("connectionString");

	public async Task Consume(ImageProcessRequest message)
	{
		await command.ExecuteScalarAsync(
			@"Insert into Images(TrackingNumber, Format, Image) 
			              Values(@TrackingNumber, @Format, @Image)",
			message);
	}
}