UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'n1+4xrPHdbrpyVmbgo9rIArQ5PZfBXrwbWMkUd6lAuU=' 
WHERE 
  key_id = '1aead842411f3bb29a19bfc2a13f789242f0a939911f8909533b51326b1d294b' 
  AND (
    token = 'n1+4xrPHdbrpyVmbgo9rIArQ5PZfBXrwbWMkUd6lAuU=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )

Query time 0.00031