You can use your licence also in openLCA. We have the option 'licence owner' on https://nexus.openlca.org/database/ecoinvent. The license owner costs 500,00 EUR. You can use the lincese under the same condition as your original license. For example, a single user academic license remains a single user academic license.
The maintenance, which allows you to get updates of the database, will be the same you already have in your original license.