public class Source
{
    public string UserName {get;set;}
    public string AppName {get;set;}
    public string Role {get;set;}
    public string Action {get;set;}
}

public class Destination
{
    public List<string> UserNames {get;set;}
    public string AppName {get;set;}
    public string Role {get;set;}
    public List<string> Actions {get;set;}
}