How do I input a json format into POST data?

[PepeHands]

I'm looking to input something like this:

{
  "email": "[email protected]",
  "password": "password",
  "scopes": [
    "Catalog"
  ]
}

But I can't put it into the post box of openbullet. Anyone know how to do this?
Any suggestions would be greatly appreciated!

Edit: I didn't realise but you can use \n in the POST data, so the data would look like this:

{\n "email" :  "<USER>" ,\n "password": "<PASS>"  ,\n "scopes" : [\n "Catalog" \n]\n}