UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'vvHuO3OvSUg1ziiQ1H9CwPI8C+Y09WEYbjcwIqmNz50=' 
WHERE 
  key_id = '6ccf8de1cf90d6fc411e89700ba0e89616fc5fd2e161d9f3c3e4467dcd57d328' 
  AND (
    token = 'vvHuO3OvSUg1ziiQ1H9CwPI8C+Y09WEYbjcwIqmNz50=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )