I bought a license for soothe2, but I need to open and use the original soothe.

A license for soothe2 is also eligible for using soothe. Due to complicated license depositing reasons we won’t bore you with, this process goes manually through the following form:
https://oeksound.com/redeem-soothe-license

Fill in the form with the required details, and a license for soothe will be deployed onto your iLok account. Please find and activate your license in the iLok License Manager.

A download link for soothe can be found here:
https://oeksound.com/downloads/legacy-soothe/