UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'AjnVWtohMAWfyrbhB7xQEg/7PF6ySK4m8LartL2e/1Q=' 
WHERE 
  key_id = '7d1bb18cab286d9a9e20a3c5322b82989a8c57a0f0aa9d7e87aac29ad8d45474' 
  AND (
    token = 'AjnVWtohMAWfyrbhB7xQEg/7PF6ySK4m8LartL2e/1Q=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )