curl 'https://pacjent.erejestracja.ezdrowie.gov.pl/api/calendarSlot/ID WIZYTY/confirm' \
  -H 'authority: pacjent.erejestracja.ezdrowie.gov.pl' \
  -H 'pragma: no-cache' \
  -H 'cache-control: no-cache' \
  -H 'sec-ch-ua: " Not A;Brand";v="99", "Chromium";v="90", "Google Chrome";v="90"' \
  -H 'accept: application/json, text/plain, */*' \
  -H 'x-csrf-token: TOKEN CSRF' \
  -H 'sec-ch-ua-mobile: ?0' \
  -H 'user-agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/90.0.4430.93 Safari/537.36' \
  -H 'content-type: application/json;charset=UTF-8' \
  -H 'origin: https://pacjent.erejestracja.ezdrowie.gov.pl' \
  -H 'sec-fetch-site: same-origin' \
  -H 'sec-fetch-mode: cors' \
  -H 'sec-fetch-dest: empty' \
  -H 'referer: https://pacjent.erejestracja.ezdrowie.gov.pl/rezerwacja-wizyty' \
  -H 'accept-language: pl,en-US;q=0.9,en;q=0.8,zh-CN;q=0.7,zh-HK;q=0.6,zh-TW;q=0.5,zh;q=0.4,pl-PL;q=0.3' \
  -H 'cookie: patient_sid=ID PACJENTA' \
  --data-raw '{"prescriptionId":"ID SKIEROWANIA"}' \
  --compressed