Never start a marketing campaign without a dedicated landing page. Landing pages live separately from your website and are designed to only receive campaign traffic.
With 50 links on your homepage, your attention ratio is 2% - compared to 100% with a single CTA. Landing pages should have all navigation and extra links removed so there is only a single action for your visitors to take. Click your call-to-action.
Instead of writing what I will do, I have written my understanding about the landing pages, so I will implement more then this. You will need.
One page responsive html page.
Multipurpose (Coming soon page, Sale page, Offer page, Lead generation page.