If you're looking to configure the bookmarks available in managed Chrome, you can use the below format. More examples can be found via Google's documentation.
[
{
"toplevel_name": "Company bookmarks"
},
{
"name": "Homepage",
"url": "mydomain.com"
},
{
"children": [
{
"name": "HR",
"url": "mydomain.com/hr"
},
{
"name": "Submit a ticket",
"url": "mydomain.com/it-support"
}
],
"name": "Internal URLs"
},
{
"name": "Android resources",
"url": "bayton.org/android"
}
]
Be aware on managed Android devices, bookmarks can't be placed on the home screen. For that use case, you should consider web apps instead.
Other things to consider -
"children"
), ensure you list the name (e.g.: "name":"Internal URLs"
)