Are there patterns for updating an object graph?

Question

.NET

Good afternoon!
The question arose of updating the entity graph. Example:

public class Animal 
{
       public string Title  {get;set;}

       public string Description {get;set;}

       public ICollection<DateOfWak> DatesOfWalk {get;set;}
}

public class DateOfWalk 
{

     public string Title {get;set;}
      
     public DateTime Date {get;set;}

     public ICollection<Place> Places {get;set;}
}

public class Place 
{
     public string Title {get;set;}
}

The WCF service comes with a collection of Animal objects similar to the one above, the nesting of collections is not more than 2, but the above is a simplified example.
So the question is - does anyone know patterns or ways to update the object graph, while signaling changes like changed, removed, added that would be quite simple to understand and in terms of speed (but not necessarily), using reflection ( System.Reflection) or expression trees System.Linq.Expressionsalso considered as an option.

Answer 1

Didn't use - GraphDiff