UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'agWnmyPa3vWATI1pfMYyxzm6vmxclQmoAntIqZYq1SU=' 
WHERE 
  key_id = '6b7381e98568bcd24afaeb3f55792b37909e635b66d80ca368219e81b785967c' 
  AND (
    token = 'agWnmyPa3vWATI1pfMYyxzm6vmxclQmoAntIqZYq1SU=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )