UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '6fwXcU6zdIYt76am1hmPFlO8Z8SO1E0HV1KAneW//XQ=' 
WHERE 
  key_id = 'dc3b28a320372a2b74f2b693d9f9f33d2d3295e4ab94dec199d5b429f7b0584f' 
  AND (
    token = '6fwXcU6zdIYt76am1hmPFlO8Z8SO1E0HV1KAneW//XQ=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )