Optional
Most likely the default country code of your phone by your location. For me, it was [{"country_code":"7","source":["default"]}]
[{"country_code":"7","source":["default"]}] Copy
[{"country_code":"7","source":["default"]}]
Username, phone or email
You should generate your own waterfall id (randomUUID()). It should be the same for the whole password reset flow.
Most likely the default country code of your phone by your location. For me, it was [{"country_code":"7","source":["default"]}]