UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'XqtyAurw0+HxoFeai0HlsVEhYT7eoqSDTbDQxeQLxZM=' 
WHERE 
  key_id = '15cee6b1ad02cd76e43d5371b5688f24d3e371443b68c6d01c6269eab3c434ba' 
  AND (
    token = 'XqtyAurw0+HxoFeai0HlsVEhYT7eoqSDTbDQxeQLxZM=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )