curl --request POST \
  --url https://api.example.com/obj/delete \
  --header 'Authorization: Basic <encoded-value>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "project_id": "<string>",
  "object_id": "<string>",
  "digests": [
    "<string>"
  ]
}
'

{
  "num_deleted": 123
}