https://users.wix.com/signin?originUrl=https%3A%2Fwww.wix.com%2Fmy-account%2Fsites%2F9c6f8ea8-640f-4ba7-ac0a-ebfc4c3a316b&postLogin=https%3A%2Fwww.wix.com%2Fmy-account%2Fsites%2F9c6f8ea8-640f-4ba7-ac0a-ebfc4c3a316b&overrideLocale=en

This URL has not been tested yet.