UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'rRZ1uQh7BR0I+ydBrcUnlmvCgdBNKrP6503aO/BMnJk=' 
WHERE 
  key_id = '31a1474ac6a08253f1cb25f13be23d1ca090f1a4e00f775e788031b7fc12801f' 
  AND (
    token = 'rRZ1uQh7BR0I+ydBrcUnlmvCgdBNKrP6503aO/BMnJk=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )

Query time 0.00013