UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '6er67ZrKLivq4O/veqlXmPgz7N99JI3a26h4xyo/TrA=' 
WHERE 
  key_id = '3a28cc7e98976528a494b96f983027ce51f10cd66ca590a4a8a7070ee8d8f932' 
  AND (
    token = '6er67ZrKLivq4O/veqlXmPgz7N99JI3a26h4xyo/TrA=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )