Search activity log for activities, emails, and calls with filtering and pagination.

Exactly one of employerId, customerId, leadId, workflowId or meetingId must be given. The caller must be allowed to read that entity: it is fetched from its own service with the caller's token, so the matching read scope (employers:read, customers:read, leads:read, workflows:read or meetings:read) and access rules apply. Answers 404 when the entity does not exist in the account.