signaldctl message mark-read
mark a message as read
signaldctl message mark-read <author> <timestamp> [<timestamp> [<timestamp>...]] [flags]
  -a, --account string   local account to use
  -h, --help             help for mark-read
      --config string          config file (default "~/.config/signaldctl.yaml")
  -o, --output-format string   the output format. options are usually table, yaml and json, default is usually table. Some commands have other options. (default "default")
      --socket string          the path to the signald socket file (default "/var/run/signald/signald.sock")