UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'B71xCXkKsjrbBuQjrfH1cUOqT2+RGGSn55dSyyUfJWc=' 
WHERE 
  key_id = '4ab18c5be6bce06e08b9eca1f66d84c7b1c2e581873bd74022c6abaa7ea91309' 
  AND (
    token = 'B71xCXkKsjrbBuQjrfH1cUOqT2+RGGSn55dSyyUfJWc=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )