UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'pGhtZqC2ovDeN7qTpWWjaMZt0p6IQNzekGTiWYevbfI=' 
WHERE 
  key_id = 'e752d77e18b0d4177a3e104d87a9b8bb6afd27a91233169c814b5a1a7210e3f3' 
  AND (
    token = 'pGhtZqC2ovDeN7qTpWWjaMZt0p6IQNzekGTiWYevbfI=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )