C# representation of an SNS message

SnsMessage.cs

/// <summary>
/// This is the C# representation of an SNS message. Its property names should not be modified unless AWS changes their spec.
/// </summary>
public sealed class SnsMessage
{
    #region Properties that apply to both Subscription Confirmation and Notification messages

    public string Message { get; set; }

    public string MessageId { get; set; }

    public string Signature { get; set; }

    public string SignatureVersion { get; set; }

    public string SigningCertURL { get; set; }

    public string Timestamp { get; set; }

    public string TopicArn { get; set; }

    public string Type { get; set; }

    #endregion

    #region Properties that only apply to Notification messages

    public string Subject { get; set; }

    public string UnsubscribeURL { get; set; }

    #endregion

    #region Properties that only apply to Subscription Confirmation messages

    public string SubscribeURL { get; set; }

    public string Token { get; set; }

    #endregion

}