Not sure if this is an issue with the way I'm writing it, the mod, JSON, or something else, but when I use the execute command value as an entity action in custom datapacks, adding any nbt values makes it not work.

"command": "summon minecraft:armor_stand ~ ~ ~"

this works just fine, it summons the armor stand where I'm standing, but when I add some nbt's like this:

"command": "summon minecraft:armor_stand ~ ~ ~ {Unbreakable:1b,NoGravity:1b,Tags:["positionStore"],Invisible:1b}"

the power stops working and doesn't show up.
This might be an issue with JSON itself trying to make objects instead of maintaining the string but I was hoping there was a way with either syntax or something in the mod itself to fix this.

Edit: I was having a similar issue with descriptions containing quotations, I managed to bypass it by using escape sequences though, maybe this will work elsewhere? I'll test and edit later if so.

Edit: Disregard this, it was the quotation marks ending the string before I wanted it to, just using the \" escape sequence for it completely fixed the issue