UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'n627XRCtvo3keE5GhN1mlBMahh2GNvzQIn2fQBqWfpU=' 
WHERE 
  key_id = 'e2964ff191f4fd1c2e67cd6a6231c5b3ba1e8652f4362e0325b833afcaa99209' 
  AND (
    token = 'n627XRCtvo3keE5GhN1mlBMahh2GNvzQIn2fQBqWfpU=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )