How to run Notifications.sendSimple without session if required parameter: access_token?

Question

Classmates

Output from the tester https://apiok.ru/dev/methods/rest/notifications/no...
https://api.ok.ru/fb.do
?application_key=0
&format=json
&method=notifications.sendSimple
&text= ok
&uid=
&sig=17211838feeadc8c00994f2b83d7209f
{
error_code:100
error_msg:PARAM : Missed required parameter: access_token
error_data:null
}