Handler for non-ipfs data

```
Token uri call for this contract returns an output something like this:

data:application/json;base64,

Encoded part has three things:
Name: xxx
Attributes:xxx
Image: data:image/svg+xml;base64,

Image value when opened in a browser renders to an svg by default.

```

No files, tests, or entry points are named. Start by locating the package entry point that handles token URIs and review its existing IPFS handling. Confirm the expected behavior for data:application/json;base64 responses containing embedded data:image/svg+xml;base64 images; the issue does not define completion criteria, so clarify the scope with maintainers.

Written by the indexing model from the issue text.