What to do if your recruiter asks you to consider 2 roles in a company?

Explore both, since you are still at early stage of your career.

With assuption Senior Exec role / manager role is someone with 3 years to 6 years of experience.

I will say understand the job scope and sometimes dont be afraid to explore and ask.

Recruiter if they are in-house with hiring manager, i might just propose why not I come as a trial for 1 day for each role, the hiring manager can better assess my suitability and I could also make an informed decision. I could go to the extent of signing NDA and other documents that will keep the information which I come across confidential.

Be bold, try something new with assumption you have some idea where you are heading to. Don't be afraid to be out of the norm, be yourself and contribute!

I think it also depends on your disposition. Managerial role involves handling staff issues, while a senior exec role kinda allows you to specialize more in what you are doing.

Would you be comfortable with the additional managerial responsibilities and to guide and develop people? or would you prefer to just focus on just 'doing' the work?

If I were you, I would probably apply to both and find out more during the interview what exactly does each role entail. For example, for the managerial role, how big is the team and what is the reporting structure like? and for the senior exec role, what is the scope of the work (to see if there's any room for development and growth) vis-a-vis my current work?