UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'RPoyF/yLz7Zx3zgVG2qHcGAjHQbDwi3m+ihvWIUvP18=' 
WHERE 
  key_id = '4de88b9c443f595901bd5f89de27acf2a1f204d76dccba7e5d393c75a489fe82' 
  AND (
    token = 'RPoyF/yLz7Zx3zgVG2qHcGAjHQbDwi3m+ihvWIUvP18=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )