Vanity redirect manager

Design a vanity/redirect link manager for a company's marketing team, internal tool. Marketers create human-readable short paths like 'go.acme.com/spring-sale' that redirect to long campaign URLs, and they can edit where a path points later. There are at most a few hundred links and a few thousand redirects per day. Describe the data model and the redirect flow. (This is a managed-redirects tool, not a high-scale public shortener.)