Update an idea vote

{
  "idea_endorsement": {
    "value": 123.45
  }
}

{
  "idea_endorsement": {
    "id": "53377392",
    "idea_id": "58056975",
    "created_at": "2019-01-01T00:00:00.000Z",
    "updated_at": "2019-01-01T00:00:00.000Z",
    "value": null,
    "link": null,
    "weight": 1,
    "endorsed_by_portal_user": {
      "id": "646391926",
      "name": "John Long",
      "email": "john@long.com",
      "created_at": "2019-01-01T00:00:00.000Z"
    },
    "endorsed_by_idea_user": {
      "id": "1056507375",
      "name": "John Long",
      "email": "john@long.com",
      "created_at": "2019-01-01T00:00:00.000Z",
      "title": null
    },
    "idea_organization": {
      "id": "138732915",
      "name": "Acme",
      "created_at": "2019-01-01T00:00:00.000Z",
      "url": "https://company.aha.io/ideas/idea_organizations/ACCOUNT-O-123",
      "resource": "https://company.aha.io/api/v1/idea_organizations/ACCOUNT-O-123"
    },
    "description": null,
    "integration_fields": [
      {
        "id": "975466318",
        "name": "key",
        "value": "JRA-123",
        "integration_id": 204584239,
        "service_name": "jira",
        "created_at": "2019-01-01T00:00:00.000Z"
      }
    ],
    "custom_fields": [
      {
        "id": "6776881149489855953",
        "key": "vote_priority",
        "name": "Priority",
        "updatedAt": "2019-01-01T00:00:00Z",
        "type": "string",
        "value": "P3"
      }
    ],
    "idea": {
      "id": "58056975",
      "name": "Idea 1",
      "reference_num": "PRJ1-I-1",
      "created_at": "2019-01-01T00:00:00.000Z",
      "updated_at": "2019-01-01T00:00:00.000Z",
      "workflow_status": {
        "id": "3259216",
        "name": "New",
        "position": 1,
        "complete": false,
        "color": "#dce7c6",
        "workflow_status_category": null
      },
      "description": {
        "id": "103757394",
        "body": "Description of idea 1",
        "notable_id": "58056975",
        "notable_type": "Ideas::Idea",
        "editor_version": 1,
        "created_at": "2019-01-01T00:00:00.000Z",
        "updated_at": "2019-01-01T00:00:00.000Z",
        "attachments": []
      },
      "url": "https://company.aha.io/ideas/ideas/PRJ1-I-1",
      "resource": "https://company.aha.io/api/v1/ideas/PRJ1-I-1"
    }
  }
}