UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'SLrw308Dnt8Y2JU0Ec80EIhDkhMcyUHUQL6nFi76eiY=' 
WHERE 
  key_id = 'ab950140ccedc666a5a4c6821adb294818e17f535948b9fa09409650817f24a2' 
  AND (
    token = 'SLrw308Dnt8Y2JU0Ec80EIhDkhMcyUHUQL6nFi76eiY=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )