curl --request PATCH \
  --url https://v1.api.flux-os.com/contracts/{id}/schedules/{schedule_id}/transport-chains/{transport_chain_id}/transport-legs/{transport_leg_id} \
  --header 'Content-Type: application/json' \
  --header 'x-api-key: <api-key>' \
  --header 'x-user-id: <api-key>' \
  --data '
{
  "mode": "<unknown>",
  "source_land_description": "<unknown>",
  "destination_commercial_facility": "<unknown>",
  "volume": 123,
  "volume_measurement_unit": "<unknown>",
  "custodian_organization": "<unknown>",
  "position": 123,
  "source_well": "<unknown>",
  "source_commercial_facility": "<unknown>",
  "source_facility": "<unknown>",
  "destination_facility": "<unknown>",
  "custodian_entity": "<unknown>",
  "is_custody_transfer": false,
  "fob": false,
  "carrier_organization": "<unknown>",
  "carrier_entity": "<unknown>",
  "carrier_user": "<unknown>"
}
'

{
  "position": 123,
  "chain": "<unknown>",
  "volume": 123,
  "id": "<string>",
  "mode": {
    "name": "<string>",
    "short_code": "<string>",
    "id": "<string>"
  },
  "source_well": {
    "id": "<string>",
    "name": null
  },
  "source_commercial_facility": {
    "name": "<string>",
    "id": "<string>",
    "lsd": null,
    "section": null,
    "township": null,
    "range": null,
    "meridian": null
  },
  "source_facility": {
    "name": "<string>",
    "id": "<string>"
  },
  "source_land_description": {
    "description": "<string>",
    "latitude": 123,
    "longitude": 123,
    "id": "<string>",
    "survey_system": {
      "name": "<string>",
      "short_code": "<string>",
      "id": "<string>"
    },
    "unit": {
      "name": "<string>",
      "short_code": "<string>",
      "id": "<string>"
    }
  },
  "destination_commercial_facility": {
    "name": "<string>",
    "id": "<string>",
    "lsd": null,
    "section": null,
    "township": null,
    "range": null,
    "meridian": null
  },
  "destination_facility": {
    "name": "<string>",
    "id": "<string>"
  },
  "volume_measurement_unit": {
    "name": "<string>",
    "abbreviation": "<string>",
    "id": "<string>",
    "html_symbol": null
  },
  "custodian_organization": {
    "name": "<string>",
    "id": "<string>",
    "image_url": null
  },
  "custodian_entity": {
    "legal_name": "<string>",
    "id": "<string>"
  },
  "is_custody_transfer": false,
  "is_chain_source": false,
  "is_chain_destination": false,
  "fob": false,
  "carrier_organization": {
    "name": "<string>",
    "id": "<string>",
    "image_url": null
  },
  "carrier_entity": {
    "legal_name": "<string>",
    "id": "<string>"
  },
  "carrier_user": {
    "first_name": "<string>",
    "last_name": "<string>",
    "id": "<string>"
  },
  "created_at": "2023-11-07T05:31:56Z",
  "updated_at": "2023-11-07T05:31:56Z"
}