UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'TWnGVRVddSdywREb2qK7zyuHX8tvxoiZ5he27NmiNiY=' 
WHERE 
  key_id = 'e46fb1ac48804191bafb9730305ffe64e3fbe790c5c50684f22ad890126f1e2a' 
  AND (
    token = 'TWnGVRVddSdywREb2qK7zyuHX8tvxoiZ5he27NmiNiY=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )