The command uses the following structure:
nrfutil mcu-manager serial [<options>] <args>
nrfutil mcu-manager image-hash [<options>] <args>
nrfutil mcu-manager ble [<options>] <args>
nrfutil mcu-manager help [<options>] <args>
To see the complete list of subcommands and available options, run nrfutil mcu-manager --help.