UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'U5UvLgUdULMC9E2A1pLm0N4hOGUljacTaa3bGeIRHQ0=' 
WHERE 
  key_id = '8b945e9d27aa884c498f6a425181e78049e513316142e8de2810c26e9228305f' 
  AND (
    token = 'U5UvLgUdULMC9E2A1pLm0N4hOGUljacTaa3bGeIRHQ0=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )