curl --request PUT \
  --url https://services.pref.rio/go/api/v1/courses/{courseId}/enrollments/status \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "enrollment_ids": [
    "<string>"
  ],
  "status": "pending",
  "admin_notes": "<string>",
  "reason": "<string>"
}
'

{
  "status": "pending",
  "updated_at": "<string>",
  "updated_count": 123
}