UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'I4z6cCvPub72fNCMENLlKYVBF9IWK833H9TwIqSuXtY=' 
WHERE 
  key_id = 'ce9eab88854066da728dbf92a55af04b41dd4ac6685605e516ef3b1b43390f61' 
  AND (
    token = 'I4z6cCvPub72fNCMENLlKYVBF9IWK833H9TwIqSuXtY=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )