UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'VfafUDGsDlSej7Vh7ZIFmyXnaI8DaAQQrVQvmMu8CME=' 
WHERE 
  key_id = 'c208552f4f31e7c2538cb4d2f75a9390abd4d07e260921d2f20ca61bbcd33bc9' 
  AND (
    token = 'VfafUDGsDlSej7Vh7ZIFmyXnaI8DaAQQrVQvmMu8CME=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )