curl --location --request GET 'https://app.hustro.com/api/v2/project//issue//incomingEmailMessage//document//downloadData' \
--header 'hustro-client: m2m' \
--header 'Authorization: Bearer <token>' \
--header 'Content-Type: application/json'{
"signedRequest": "string",
"thumbnailSignedRequest": "string"
}