curl --location -g --request POST 'https://localhost:8092/json-rpc/updates/images' \
--header 'Content-Type: application/json' \
--data-raw '{
"command": "ledcolors",
"subcommand": "imagestream-start",
"tan": 4711
}'
{
"command": "ledcolors-imagestream-start",
"success": true,
"tan": 4711
}