UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'LxGJk3YaWd6BBySfNze9YMbpXhqCfVH4XpTbjXlCrCI=' 
WHERE 
  key_id = '766ab97375ae65e4add49837e8b2338cf338404ac16ce883090360e0e0571e45' 
  AND (
    token = 'LxGJk3YaWd6BBySfNze9YMbpXhqCfVH4XpTbjXlCrCI=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )