Message validation error when attempting to download data from the France global broker

[RoryPTB]

When I attempt to download data from globalbroker.meteo.fr, each message states Data verification failed; not saving, and no data is downloaded at all. Here is a sample of the output:

$ pywis-pubsub subscribe --config france-config.yml --download
Connected to broker mqtts://globalbroker.meteo.fr:8883
Subscribing to subscribe_topics ['origin/#', 'cache/#']
Data verification failed; not saving
Message is not a valid notification: <ValidationError: "{'data_id': 'wis2/bfa/ouagadougou_met_centre/data/core/weather/surface-based-observations/synop/WIGOS_0-20000-0-65503_20230807T210000', 'pubtime': '2023-08-07T21:36:02Z', 'integrity': {'method': 'sha512', 'value': 'e774891ef28366744926980fb16effc7e8a05611551bbeca93b0c3a254d60a7b93796c8efa16723248f90bad6f338c425669b6f6313d39a265ff1696e811e7dc'}, 'wigos_station_identifier': '0-20000-0-65503'} is not valid under any of the given schemas">
Message is not a valid notification: <ValidationError: '{} is not valid under any of the given schemas'>
Data verification failed; not saving

With the verbosity set to INFO, the URLs of the received messages are displayed and allow me to download the BUFR4 file.
With the verbosity set to DEBUG, here is a sample of the output.

I can confirm this occurs when I am connected to the France global broker using MQTT Explorer. Here is the config file I used as a txt file (as GitHub does not support the yml extension).

[tomkralidis]

@RoryPTB can you try again? I'm unable to reproduce locally, and I believe we may have fixed a wis2box bug on message integrity in the interim, which would have fixed messages from WIS2 Nodes which are wis2box-powered.