UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'MwKEL/DFB2cBoKa6Q6u26863e/dyb6RKyldDsZA+bus=' 
WHERE 
  key_id = '270fbca237bce621d4167c162b1790c946d67666af815d55015441c085299dc2' 
  AND (
    token = 'MwKEL/DFB2cBoKa6Q6u26863e/dyb6RKyldDsZA+bus=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )