curl --location --request PUT 'https://api.sandbox.supersign.com.br/v4/api/envelopes//participants' \
--header 'Authorization: Bearer <token>' \
--header 'Content-Type: application/json' \
--data '{
"signatories": [],
"approvers": [],
"observers": []
}'{
"created": 0,
"updated": 0,
"deleted": 0
}