UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'yhoSeJfkESWivQrAhsKYKYj/FLKgrl1sLYoyF57/bUw=' 
WHERE 
  key_id = '6d97f02368ce544aa71081c6eb3ea910547b4c203e928448e879e8ca62aee3ec' 
  AND (
    token = 'yhoSeJfkESWivQrAhsKYKYj/FLKgrl1sLYoyF57/bUw=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )