[
  {
    "id": "<some-uuid>",
    "name": "output.pdf",
    "approvals": [
      {
        "role": "<some-uuid>",
        "optional": false,
        "fields": [
          {
            "type": "SIGNATURE",
            "subtype": "CAPTURE",
            "extract": true,
            "left": 0,
            "page": 0,
            "top": 0,
            "extractAnchor": {
              "text": "s-s1-<some-uuid>",
              "index": 0,
              "anchorPoint": "TOPLEFT",
              "characterIndex": 0,
              "leftOffset": 0,
              "width": 150,
              "height": 30,
              "topOffset": -22
            }
          }
        ]
      }
    ]
  }
]