curl --request POST \
  --url https://api.hubapi.com/crm-objects/v1/objects/products

[
  {
    "name": "name",
    "value": "A new product"
  },
  {
    "name": "description",
    "value": "A description of this product."
  },
  {
    "name": "price",
    "value": "27.50"
  },
  {
    "name": "recurringbillingfrequency",
    "value": "quarterly"
  },
  {
    "versions": [
      {
        "name": "hs_lastmodifieddate",
        "value": "0",
        "timestamp": 0,
        "source": "CALCULATED",
        "sourceVid": []
      }
    ],
    "value": "0",
    "timestamp": 0,
    "source": "CALCULATED",
    "sourceId": null
  },
  {
    "versions": [
      {
        "name": "price",
        "value": "27.50",
        "timestamp": 1525287096980,
        "source": "API",
        "sourceVid": []
      }
    ],
    "value": "27.50",
    "timestamp": 1525287096980,
    "source": "API",
    "sourceId": null
  },
  {
    "versions": [
      {
        "name": "name",
        "value": "A new product",
        "timestamp": 1525287096980,
        "source": "API",
        "sourceVid": []
      }
    ],
    "value": "A new product",
    "timestamp": 1525287096980,
    "source": "API",
    "sourceId": null
  },
  {
    "versions": [
      {
        "name": "createdate",
        "value": "0",
        "timestamp": 0,
        "source": "API",
        "sourceVid": []
      }
    ],
    "value": "0",
    "timestamp": 0,
    "source": "API",
    "sourceId": null
  },
  {
    "versions": [
      {
        "name": "description",
        "value": "A description of this product.",
        "timestamp": 1525287096980,
        "source": "API",
        "sourceVid": []
      }
    ],
    "value": "A description of this product.",
    "timestamp": 1525287096980,
    "source": "API",
    "sourceId": null
  },
  {
    "versions": [
      {
        "name": "recurringbillingfrequency",
        "value": "quarterly",
        "timestamp": 1525287096980,
        "source": "API",
        "sourceVid": []
      }
    ],
    "value": "quarterly",
    "timestamp": 1525287096980,
    "source": "API",
    "sourceId": null
  }
]