namespace MemberCenter.Domain.Entities; public sealed class UnsubscribeToken { public Guid Id { get; set; } public Guid SubscriptionId { get; set; } public string TokenHash { get; set; } = string.Empty; public DateTimeOffset ExpiresAt { get; set; } public DateTimeOffset? ConsumedAt { get; set; } public NewsletterSubscription? Subscription { get; set; } }