UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'o6BVkRfhI6FYJw9xJXsxxRMGrUBAQ7zinVUpq6ff3uA=' 
WHERE 
  key_id = '9fc8f6d98704948cf7d3602cfa184f88716ec8d71b719fc57d5957e472ee48b0' 
  AND (
    token = 'o6BVkRfhI6FYJw9xJXsxxRMGrUBAQ7zinVUpq6ff3uA=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )