Create vault memory entry

{
  "entry": {
    "id": "<string>",
    "type": "<string>",
    "content": "<string>",
    "source": "<string>",
    "tags": [
      "<string>"
    ],
    "created_by": "<string>",
    "created_at": "2023-11-07T05:31:56Z",
    "updated_at": "2023-11-07T05:31:56Z"
  }
}