curl --request POST \
  --url https://v1.api.flux-os.com/contracts/{id}/paper \
  --header 'Content-Type: application/json' \
  --header 'x-api-key: <api-key>' \
  --header 'x-user-id: <api-key>' \
  --data '
{
  "paper_from": "<unknown>",
  "governing_gtc": "<unknown>",
  "external_id": null
}
'

{
  "data": {
    "id": "<string>",
    "contract": {
      "external_id": "<string>",
      "id": "<string>"
    },
    "paper_from": {
      "name": "<string>",
      "id": "<string>",
      "image_url": null
    },
    "external_id": null,
    "governing_gtc": {
      "name": "<string>",
      "short_code": "<string>",
      "id": "<string>"
    },
    "created_at": "2023-11-07T05:31:56Z",
    "updated_at": "2023-11-07T05:31:56Z",
    "legal_provisions": [
      {
        "id": "<string>",
        "provision": {
          "name": "<string>",
          "short_code": "<string>",
          "content": "<string>",
          "organization": "<unknown>",
          "id": "<string>"
        },
        "created_at": "2023-11-07T05:31:56Z",
        "updated_at": "2023-11-07T05:31:56Z"
      }
    ],
    "pricing_provisions": [
      {
        "id": "<string>",
        "provision": {
          "type": "<unknown>",
          "contract": "<unknown>",
          "fee": "<unknown>",
          "id": "<string>",
          "description": null,
          "created_at": "2023-11-07T05:31:56Z",
          "updated_at": "2023-11-07T05:31:56Z"
        },
        "created_at": "2023-11-07T05:31:56Z",
        "updated_at": "2023-11-07T05:31:56Z"
      }
    ]
  }
}