UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'jEiwCoM/jY981u9+XnXu255Evb/xemdUxmsvW/EZVh0=' 
WHERE 
  key_id = '896983999637a8f3cbbc639ada1fd361340c6b85e5a1eed7a8f2a29c6f1f8ede' 
  AND (
    token = 'jEiwCoM/jY981u9+XnXu255Evb/xemdUxmsvW/EZVh0=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )