curl --request POST \
  --url https://app.freyavoice.ai/api/v2/call/{callId}/tags \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "workspaceId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "tag": "<string>",
  "source": "user",
  "value": 123,
  "confidence": 0.5,
  "metadata": {}
}
'

{
  "success": true,
  "data": {
    "message": "<string>",
    "result": {
      "success": true,
      "tag": {
        "tag": "<string>",
        "source": "<string>",
        "value": 123,
        "confidence": 0.5,
        "metadata": {}
      },
      "message": "<string>"
    }
  }
}