UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'ek4spN0ZDCruveffPnin2TZXBWmh2Z2pbiYiLwi6PTg=' 
WHERE 
  key_id = 'b96b1a8d2cf25c6afc371b4e2cb0bb59a2590bcfef3ea92f5c64a1eca4ade20c' 
  AND (
    token = 'ek4spN0ZDCruveffPnin2TZXBWmh2Z2pbiYiLwi6PTg=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )