Component Link in Page Metadata for DXA

PageViewModel.cs

using System.Globalization;
using Sdl.Web.Common.Models;

namespace Models
{
    public class PageViewModel : PageModel
    {
        private SecurityMessage message;
        Provide provider = new Provider();
        
        public PageViewModel(string id) : base(id)
        {

        }

        [SemanticProperty(PropertyName = "securityMessage")]
        public SecurityMessage SecurityMessage { get; set; }
		
        public bool HasSecurityMessage => SecurityMessage != null;

        public SecurityMessage Message
        {
            get
            {
                if (HasSecurityMessage)
                {
                    SecurityMessage model = provider.GetSecurityMessage(SecurityMessage.Id);
                    return model;
                }
                return message;
            }
            set { message = value; }
        }
    }
}

Provider.cs

namespace Providers
{

    public class Provider
    {
        #region Veriable
        private IContentProvider _contentProvider;
        #endregion

        #region Properties
      

        protected IContentProvider ContentProvider
        {
            get { return _contentProvider ?? (_contentProvider = SiteConfiguration.ContentProvider); }
            set { _contentProvider = value; }
        }
        
        /// <summary>
        /// Read and Return the Security message
        /// </summary>
        /// <param name="securityMessageId"></param>
        /// <returns></returns>
        public SecurityMessage GetSecurityMessage(string securityMessageId)
        {
            try
            {
                string presentationId = securityMessageId + "-" +  SiteLabelConfiguration.TcmUriOfDynamicTemplateForMetadata;
                SecurityMessage model = ContentProvider.GetEntityModel(presentationId, WebRequestContext.Localization) as SecurityMessage;
                return model;
            }
            catch (Exception ex)
            {
                throw new DxaException("Error while Gettng Dynamic Tile Component", ex);
            }
            
        }
     }
 }