UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '1tAc7dZZ5TVSlHvSJbQyWfjJ0vNjhTZ2sdUL8OVCmmI=' 
WHERE 
  key_id = '8798642d85e0640de4b1a4304bea9cad7438b8c649ac90a1cc0b1ca5b0030097' 
  AND (
    token = '1tAc7dZZ5TVSlHvSJbQyWfjJ0vNjhTZ2sdUL8OVCmmI=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )