UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'MZrb1jBo/QlwCI/175uxGqGVzHf8ZGblDYBaQVkU6YY=' 
WHERE 
  key_id = '88fda7586d5f5d0ed916bb7f71724ed5ce0917873136cbe0f01779365d19ac4f' 
  AND (
    token = 'MZrb1jBo/QlwCI/175uxGqGVzHf8ZGblDYBaQVkU6YY=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )