UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Nuhh8+gq+BEsAjOswDUncX/NAoFCACLEeUNFcRnNmrY=' 
WHERE 
  key_id = '816d7245eaabfa928604cad6b8c888903697f46dd87b5115ca87d7f10a813236' 
  AND (
    token = 'Nuhh8+gq+BEsAjOswDUncX/NAoFCACLEeUNFcRnNmrY=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )