Merge pull request #1117 from bdring/MSG_JSON #326

Job	Run time
tests (ubuntu-latest, tests)	34s
build (ubuntu-latest, noradio)	2m 14s
tests (macos-latest, tests)	44s
build (ubuntu-latest, wifi)	2m 26s
tests (windows-latest, tests_nosan)	1m 26s
build (ubuntu-latest, bt)	2m 38s
build (macos-latest, noradio)	4m 17s
build (macos-latest, wifi)	2m 32s
build (macos-latest, bt)	4m 42s
build (windows-latest, noradio)	5m 40s
build (windows-latest, wifi)	5m 12s
build (windows-latest, bt)	4m 49s
	37m 14s

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