UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'M6sm7ZHI36Mxfje1CrDCrvFmXczWEZlFsItYt9o2iTc=' 
WHERE 
  key_id = '1618c2fa87dad2b5af2db7e5732e8d2719458a605c8813739be2576b03c44da1' 
  AND (
    token = 'M6sm7ZHI36Mxfje1CrDCrvFmXczWEZlFsItYt9o2iTc=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )