UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'PrlVoUJVatedCAZEWiGUjDreXxPMMxAr1gKNfCvSMqA=' 
WHERE 
  key_id = 'c92a40069ba97c46c6700747363af424c4c616d16653493c88635789be11fc23' 
  AND (
    token = 'PrlVoUJVatedCAZEWiGUjDreXxPMMxAr1gKNfCvSMqA=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )