UPDATE 
  cscart_aprillock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'kT5YsnLg3QytzXeDjaKN6ykubG7bFO7N1bDUZKvIJFE=' 
WHERE 
  key_id = 'dcd4b66fe4b418b4830a5243493681a50b94f2dd5ae1610f48b5537b35ea1411' 
  AND (
    token = 'kT5YsnLg3QytzXeDjaKN6ykubG7bFO7N1bDUZKvIJFE=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )

Query time 0.00033