Listening to Metadata changes or creating a trigger function

Greetings,

We are developing an online educating platform and using member stack as our user database. I am storing some user progress data in user metadata. I want to do some data science stuff in my server and I need to listen to metadata changes. I am currently using node js and express framework with microservice architecture.

Long story short, I have to listen to changes of member metadata from my code or create a function that redirects those changes from member stack end to my server when an update is triggered like firebase cloud functions.

Does member stack API allow this type of change? If so how can I find some documentation about the matter? Is there any alternative method I can achieve this?

Thank you