UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'y8qNStpUe0TBDO/9FaW14D5N4kDyQHIWHF9fDneXC54=' 
WHERE 
  key_id = '8634298b976140e7d98ef2abd7cfa2b18d1b825ce8664334b519ec137a1170d2' 
  AND (
    token = 'y8qNStpUe0TBDO/9FaW14D5N4kDyQHIWHF9fDneXC54=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )