UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '4yxx/3NDnVkT5nZoUrQlYlmOJ3JjjVRQYcKHgd08LWU=' 
WHERE 
  key_id = 'b9d2f879fc748fd2f2ec64ea884ea5c2fc65b74d79bc01bf41507d58a49549b5' 
  AND (
    token = '4yxx/3NDnVkT5nZoUrQlYlmOJ3JjjVRQYcKHgd08LWU=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )