UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 't2xjeRDjPsAeQeejNkSc1+7ztBubItNXVnEjS0nYCO0=' 
WHERE 
  key_id = '28dd434b3343b6ce08cc9c302d6af868d4070ab64fa47c08ad8689f87f658a31' 
  AND (
    token = 't2xjeRDjPsAeQeejNkSc1+7ztBubItNXVnEjS0nYCO0=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )