UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'e6tbf/t7v3kMShnI4sOSLKQGUWCuy47IUtXPuha3a48=' 
WHERE 
  key_id = '6fef30827ecbfc0d1b9aa581de6bda0186cbf248c87ff266c1edfd48551e1141' 
  AND (
    token = 'e6tbf/t7v3kMShnI4sOSLKQGUWCuy47IUtXPuha3a48=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )