https://eu.api.novu.co/v1/events/trigger with PostMan and getting this responseKey ID, Team ID, Bundle ID. With Private Key I made more checks. Private Key format is correct, I copy/paste it from AuthKey_XXX.p8 file (including -----BEGIN PRIVATE KEY----- and -----END PRIVATE KEY----- parts), I verified it with openssl ec -in AuthKey_XXX.p8 -text -noout command and the result was like this