UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'zEJPQvuElFVhv/BdVceAKSwyv0d8icfKYgDfmeT02PU=' 
WHERE 
  key_id = '51e84392ed9b426bd389d078a8e9a55b515f32a73ef475460d6014ac4ff0bfb3' 
  AND (
    token = 'zEJPQvuElFVhv/BdVceAKSwyv0d8icfKYgDfmeT02PU=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )