UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Wca4vQPEU+XVtuT+MayUH0AssnklrQVTVciNRTblqrA=' 
WHERE 
  key_id = '7946d2a2fcfe06009f60bac002c1cc83c509281a3c2496b3d051759668a356e7' 
  AND (
    token = 'Wca4vQPEU+XVtuT+MayUH0AssnklrQVTVciNRTblqrA=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )