UPDATE 
  q_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'UKAwKBbqFw9rZ2ilK/obic4LUpLKZT4/YOScXkiDmZE=' 
WHERE 
  key_id = '93c75af8a8c59dd7e02da509b67a88857e561b09a8599f8504256ed3e1b4cb89' 
  AND (
    token = 'UKAwKBbqFw9rZ2ilK/obic4LUpLKZT4/YOScXkiDmZE=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )