UPDATE 
  q_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'IanmglI7/CDFib3gWHqnmrM/7WqAx0quJJbNERIhCek=' 
WHERE 
  key_id = '788e3c87b68b031a9bb911b330f29b8b704dac5ff2d4035b08568505d1230737' 
  AND (
    token = 'IanmglI7/CDFib3gWHqnmrM/7WqAx0quJJbNERIhCek=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )