Provenance with signature for a Consent

{
  "resourceType": "Provenance",
  "id": "consent-signature",
  "text": {
    "status": "generated",
    "div": "<div xmlns=\"http://www.w3.org/1999/xhtml\"><p><b>Generated Narrative: Provenance</b><a name=\"consent-signature\"> </a></p><div style=\"display: inline-block; background-color: #d9e0e7; padding: 6px; margin: 4px; border: 1px solid #8da1b4; border-radius: 5px; line-height: 60%\"><p style=\"margin-bottom: 0px\">Resource Provenance &quot;consent-signature&quot; </p></div><p><b>target</b>: <a href=\"consent-example.html\">Consent/consent-example-basic/_history/1</a></p><p><b>recorded</b>: <span title=\"  the provenance is recorded at the same time as \n    the resource - batched together  \">26/05/2016 2:41:10 PM</span></p><p><b>activity</b>: authenticated <span style=\"background: LightGoldenRodYellow; margin: 4px; border: 1px solid khaki\"> (<a href=\"http://terminology.hl7.org/3.1.0/CodeSystem-v3-DocumentCompletion.html\">DocumentCompletion</a>#AU)</span></p><p><b>patient</b>: <a href=\"patient-example.html\">Patient/example</a> &quot;Peter CHALMERS&quot;</p><h3>Agents</h3><table class=\"grid\"><tr><td>-</td><td><b>Role</b></td><td><b>Who</b></td></tr><tr><td>*</td><td>author (originator) <span style=\"background: LightGoldenRodYellow; margin: 4px; border: 1px solid khaki\"> (<a href=\"http://terminology.hl7.org/3.1.0/CodeSystem-v3-ParticipationType.html\">ParticipationType</a>#AUT)</span></td><td><a href=\"todo.html\">Patient/72</a></td></tr></table><h3>Signatures</h3><table class=\"grid\"><tr><td>-</td><td><b>Type</b></td><td><b>When</b></td><td><b>Who</b></td><td><b>TargetFormat</b></td><td><b>SigFormat</b></td><td><b>Data</b></td></tr><tr><td>*</td><td>Author's Signature (Details: urn:iso-astm:E1762-95:2013 code 1.2.840.10065.1.12.1.1 = 'Author's Signature', stated as 'Author's Signature')</td><td>26/05/2016 2:41:10 PM</td><td><a href=\"todo.html\">Patient/72</a></td><td>application/fhir+xml</td><td>application/signature+xml</td><td>dGhpcyBibG9iIGlzIHNuaXBwZWQ=</td></tr></table></div>"
  },
  "target": [
    {
      "reference": "Consent/consent-example-basic/_history/1"
    }
  ],
  "recorded": "2016-05-26T00:41:10-04:00",
  "activity": {
    "coding": [
      {
        "system": "http://terminology.hl7.org/CodeSystem/v3-DocumentCompletion",
        "code": "AU",
        "display": "authenticated"
      }
    ]
  },
  "patient": {
    "reference": "Patient/example"
  },
  "agent": [
    {
      "role": [
        {
          "coding": [
            {
              "system": "http://terminology.hl7.org/CodeSystem/v3-ParticipationType",
              "code": "AUT"
            }
          ]
        }
      ],
      "who": {
        "reference": "Patient/72"
      }
    }
  ],
  "signature": [
    {
      "type": [
        {
          "system": "urn:iso-astm:E1762-95:2013",
          "code": "1.2.840.10065.1.12.1.1",
          "display": "Author's Signature"
        }
      ],
      "when": "2016-05-26T00:41:10-04:00",
      "who": {
        "reference": "Patient/72"
      },
      "targetFormat": "application/fhir+xml",
      "sigFormat": "application/signature+xml",
      "data": "dGhpcyBibG9iIGlzIHNuaXBwZWQ="
    }
  ]
}