server/src/Core/Models/Data/Event.cs

using System;
using Bit.Core.Enums;

namespace Bit.Core.Models.Data
{
    public class Event : IEvent
    {
        public DateTime Date { get; set; }
        public EventType Type { get; set; }
        public Guid? UserId { get; set; }
        public Guid? OrganizationId { get; set; }
        public Guid? CipherId { get; set; }
        public Guid? CollectionId { get; set; }
        public Guid? GroupId { get; set; }
        public Guid? OrganizationUserId { get; set; }
        public Guid? ActingUserId { get; set; }
    }
}