I don't know if you can increase the row limit beyond 50K, but I think you can use pagination to make an secondary call for the next 50K rows?
"settings": {
"countRepeatInstances": true,
"includeAnnotations": true,
"limit": 10,
"page": 0,
"nonesBehavior": "exclude-nones"
There is a settings area that allows you to set limit and page... so if you might be able to set a higher limit, but if not, you can set a 50K limit, then call additional pages of data?
I haven't used this myself, so it might need some testing....