Hubspot Contact API Questions

contact.json

{
  "addedAt": 1405347851360,
  "vid": 154835,
  "canonical-vid": 154835,
  "merged-vids": [],
  "portal-id": 62515,
  "is-contact": true,
  "profile-token": "AO_T-mPlyZmoCpqTNHTwZq_pcAEjmt8FIoJO67osiz9pMRNtyZ0wLvXMHgDbUKsMmIvuHnHYoaQNnwcsUgWnSvtLCBI4VNKpIfaRzaoMXnN3WB0YyBRHIdhwf3taqZq5R2gCf6_dK0lb",
  "profile-url": "https://app.hubspot.com/contacts/62515/lists/public/contact/_AO_T-mPlyZmoCpqTNHTwZq_pcAEjmt8FIoJO67osiz9pMRNtyZ0wLvXMHgDbUKsMmIvuHnHYoaQNnwcsUgWnSvtLCBI4VNKpIfaRzaoMXnN3WB0YyBRHIdhwf3taqZq5R2gCf6_dK0lb/",
  "properties": {
    "firstname": {
      "value": "Adrian updated"
    },
    "lastmodifieddate": {
      "value": "1434879435433"
    },
    "company": {
      "value": "Derp Durr Hurr"
    },
    "lastname": {
      "value": "Mott"
    }
  },
  "form-submissions": [
    {
      "conversion-id": "b18f9fd8-b8d3-49e5-898a-ac301fac93e9",
      "timestamp": 1405347851180,
      "form-id": "b844ad5e-32bd-41e1-b0e6-ed990c5f3d1b",
      "portal-id": 62515,
      "page-url": "http://demo.hubapi.com/your-stunning-headline-30",
      "page-title": "Your stunning headline!",
      "page-id": "324527",
      "title": "My New Form",
      "meta-data": []
    }
  ],
  "identity-profiles": [
    {
      "vid": 154835,
      "saved-at-timestamp": 1434741580156,
      "deleted-changed-timestamp": 0,
      "identities": [
        {
          "type": "LEAD_GUID",
          "value": "c8f20860-d3d6-4b57-b092-86a07cebdcbc",
          "timestamp": 1405347851237
        },
        {
          "type": "EMAIL",
          "value": "bob@example.com",
          "timestamp": 1434741580120
        }
      ]
    }
  ],
  "merge-audits": []
}