UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'py53qhBshHNyduVqi9IJk4eqKJUAZFKm27UgL6GgBKg=' 
WHERE 
  key_id = '94d23937d471854db24e227a282ab4c743b2ee21a54f4e74954b331241560f32' 
  AND (
    token = 'py53qhBshHNyduVqi9IJk4eqKJUAZFKm27UgL6GgBKg=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )