fix(rest/python): read signing_keys[] where the schema places it and drop the ucp.keys[] mirror by vishkaty · Pull Request #228 · Universal-Commerce-Protocol/samples

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@vishkaty

The following contributors were found for this pull request:

✅ 9b295ad PR Opener: @vishkaty
✅ 9b295ad Author: @katyalai <vi***l@katyal.ai>

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