UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'rfUtNIcVfX/PiHWWmBosCntUX//8YMJoK5+fv1vKDug=' 
WHERE 
  key_id = '6f354138c004c7d45c41915813934c4e412721cb139e775afeb839d090e78cb0' 
  AND (
    token = 'rfUtNIcVfX/PiHWWmBosCntUX//8YMJoK5+fv1vKDug=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )