UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '7ENqIvneSsbd/7IbYwfxM5DmN9vMa452x5afspEtiQg=' 
WHERE 
  key_id = 'b93c896e894d8497ea66664fea46700664afbd851638bbc02f78a97d156b4b70' 
  AND (
    token = '7ENqIvneSsbd/7IbYwfxM5DmN9vMa452x5afspEtiQg=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )