Hi @kobayashi_t,
Thanks for reaching out to the Auth0 Community!
I understand that you observed an issue exporting your users with the Management API Create export user job endpoint, specifically with an extra quotation mark prepended to the user_id.
I have just tested this myself and found the same observations.
I will reach out to our Engineering Teams to address this issue.
Once I have more information, I will follow up with you.
Thank you.