UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'NL8X8wUvNrHUYPw0YlCIRUk8i+AmywvZ6UeZagjhzxU=' 
WHERE 
  key_id = '3815f4d3950b8af31fab5c4c65f9f668a171ac1a7185f0e802bffb19d95f40b2' 
  AND (
    token = 'NL8X8wUvNrHUYPw0YlCIRUk8i+AmywvZ6UeZagjhzxU=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )

Query time 0.00032