public void AddClaim(UserClaims claim)
        {
            if (_claims == null)
                _claims = new List<UserClaims>();

            _claims.Add(claim);
        }
		private void ParseClaims(AuthenticationResult authenticationResult, OAuthAuthenticationParameters parameters)
        {
			var claims = new UserClaims();
			claims.Contact = new ContactClaims();
			if (authenticationResult.ExtraData.ContainsKey("username"))
				claims.Contact.Email = authenticationResult.ExtraData["username"];
			claims.Name = new NameClaims();
			if (authenticationResult.ExtraData.ContainsKey("name"))
			{
				var name = authenticationResult.ExtraData["name"];
				if (!String.IsNullOrEmpty(name))
				{
					var nameSplit = name.Split(new char[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);
					if (nameSplit.Length >= 2)
					{
						claims.Name.First = nameSplit[0];
						claims.Name.Last = nameSplit[1];
					}
					else
					{
						claims.Name.Last = nameSplit[0];
					}
				}
			}
            parameters.AddClaim(claims);
        }