The Everflow API key generated from the Control Center > Security.
The ID of the advertiser whose users you want to fetch.
Include additional relationships in the response. Multiple relationships can be supplied by repeating this query parameter. Supported values: logins (includes the user's list of logins), password_history (includes the user's password changes history), api (includes the user's API key and whitelisted IPs), customizations (includes the user's customizations).
logins, password_history, api, customizations