chg: [signing validation] re-added to the new ServerSyncTool
chg: [signing validation] re-added to the new ServerSyncTool

MISP/MISP,MISP/MISP,MISP/MISP,MISP/MISP,MISP/MISP,SteveClement/MISP,SteveClement/MISP,SteveClement/MISP,SteveClement/MISP,SteveClement/MISP