UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'BrH8ugg36voljKYD0a6erpF7oDjP+y1bNMW2JFjc68o=' 
WHERE 
  key_id = '4ebf14a54a0fba5a4edc9bd9c785630be1f91882631f5b982a82275e6a27e5e7' 
  AND (
    token = 'BrH8ugg36voljKYD0a6erpF7oDjP+y1bNMW2JFjc68o=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )