Unable to find Digital Customer Service Account Key in Oracle Fusion/SaaS

Summary:

We are trying to find where our digital customer service (DCS) account keys live in the SaaS database.
The account key is attached at the account level, but it's not found in HZ_CUST_ACCOUNTS. We've tried looking at so many tables, but are unable to find where the account key's live.

Please let us know how we can find these account keys directly from SaaS tables.
Thanks,

Content (please ensure you mask any confidential information):

This field lives and was created using Application Composer using a custom field in a standard object.
Objects → Standard Objects → Account → Fields → Custom