curl --request GET \
  --url https://api.messari.io/metrics/v1/markets/{entityIdentifier}/metrics/{datasetSlug}/time-series \
  --header 'X-Messari-API-Key: <api-key>'

{
  "data": {
    "points": [
      [
        "<unknown>"
      ]
    ]
  },
  "error": "<string>",
  "metadata": {
    "granularity": "1m",
    "pointSchemas": [
      {}
    ]
  }
}