Regardless of where you are located in the world, you must obtain consent to use modern identifiers in advertising and website user analytics for users located in the EU/EEA.
Tutorials based on the type of setup you have:
How to Implement a GDPR Consent Form On WordPress
How To Make DFP Publishers GDPR Compliant
How To Make PubGuru Header Bidding OFF-page Publishers GDPR Compliant
New update: MonetizeMore can now handle GDPR and CCPA consent for OFF-page publishers even with a single line of Header Bidding script deployed in the header section of your source code. Check with your account manager about it.