UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'mQDDhAVJ3EK73R0Izi6DUN9OZCD7inYgAUAfWKPMA/c=' 
WHERE 
  key_id = '5438c35f8a5a8bbf2d4180269aad1ea6292294f287e6eb5524d9adb9e55f6ee5' 
  AND (
    token = 'mQDDhAVJ3EK73R0Izi6DUN9OZCD7inYgAUAfWKPMA/c=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )