UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'QREbkdRTQLH2BtXUJ8yESJrlbUW75p2eOv5GurXSwtQ=' 
WHERE 
  key_id = '15d615b5e50605f3b91a2db2e2c11a573859d731b8bb0848356671af9670ce5e' 
  AND (
    token = 'QREbkdRTQLH2BtXUJ8yESJrlbUW75p2eOv5GurXSwtQ=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )