UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'kkSWdlFrH2e3GTebHcS868yziBQZjSrqsOftkMynwn4=' 
WHERE 
  key_id = '9b93188746365cac42e46c8adb60596926275b54d6bc2ae678f9254e0daa0a08' 
  AND (
    token = 'kkSWdlFrH2e3GTebHcS868yziBQZjSrqsOftkMynwn4=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )