UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'WnFCCuKkltWulDc9WVO8Nb3H89CfXznFWcgtMi/QAlo=' 
WHERE 
  key_id = '19540f0bb7ae667b0f0a2b9f54148135f1eca987c52fbdf93b3b84fa78c35e33' 
  AND (
    token = 'WnFCCuKkltWulDc9WVO8Nb3H89CfXznFWcgtMi/QAlo=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )