UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'iZmw81Q/Tph5hNKdslpVCGI40Zmwtt74dAHgF4pQ26Q=' 
WHERE 
  key_id = '7adc8b172f75a101af170fd61370602cf816ce06345324fb621c5d40b098f376' 
  AND (
    token = 'iZmw81Q/Tph5hNKdslpVCGI40Zmwtt74dAHgF4pQ26Q=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )