Customer Identity Access Management (CIAM) is your knight in shining armor. Customer ID Access Management can meet the requirement when dealing with personal and more special data: Collection of identity data and data minimization: A digital identity is a very useful thing. A CIAM system can be designed to not only verify a persons identity but to actively engage them with your organization. CIAM systems should allow you to provide an audit of cons and revoke a traditional audit mechanism or blockchain based consent receipts.”]
Source: https://www.csoonline.com/article/3227912/identity-data-in-the-world-of-gdpr.html