UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'xxkZhZD/zuQ+d7LgwFJGK7AkfIetUDL2Vpqw7Hr5xDg=' 
WHERE 
  key_id = '4cefe08a717dd0b4c07e1ae53691d0be8542c5043de87b14ee9c7a6feb03e0d5' 
  AND (
    token = 'xxkZhZD/zuQ+d7LgwFJGK7AkfIetUDL2Vpqw7Hr5xDg=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )