POST http://127.0.0.1:50052/backups
Content-Type: multipart/form-data; boundary=bound
Authorization: Bearer eyJ1c2VySUQiOiAiMSIsICJhY2Nlc3NUb2tlbiI6ICIyIiwgImRldmljZUlEIjogIjMifQ==

--bound
Content-Disposition: form-data; name="backup_id"

id7
--bound
Content-Disposition: form-data; name="user_keys_hash"

keys_hash7
--bound
Content-Disposition: form-data; name="user_keys"
Content-Type: application/octet-stream

keys7
--bound
Content-Disposition: form-data; name="user_data_hash"

data_hash7
--bound
Content-Disposition: form-data; name="user_data"
Content-Type: application/octet-stream

data7
--bound
Content-Disposition: form-data; name="attachments"

a7-1
a7-2
a7-3
--bound--