UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'QvVlBbNSo44zVQzZq4f/LHouOlZTaS2xblFvYKp3pkc=' 
WHERE 
  key_id = '6c2300862e6b45d402047dd96d3206d6d756ae7efbd790ac41b2d21838489207' 
  AND (
    token = 'QvVlBbNSo44zVQzZq4f/LHouOlZTaS2xblFvYKp3pkc=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )