Modifying a directory quota using OneFS API

I am attempting to modify an existing quota, by making a call to the Isilon API, and I am pretty sure, I am missing something in the request body. Does anyone know what could be going wrong ?

URL of the request being made - PUT /platform/1/quota/quotas/ - I obtained the schema information by making a get call to ?describe - and formed the following body input.

{
  
  "type": "directory", 
  "properties": {
  
    "thresholds": {
  
      "type": "directory", 
      "properties": {
  
        "advisory": "5242880", 
        "soft_grace": "432000", 
        "hard": "20971520", 
        "soft":"10485760" 
      }
    }, 
    "enforced": "true", 
    "container": "true", 
    "linked": "true", 
    "thresholds_include_overhead": "false"
  }
}

Does anyone know - if the type must default to "object" ? I am modifying a directory quota and am assuming that this has to be set as directory.

I have also attempted a couple of variants -

1. Include the values of - advisory,soft_grace,hard and soft - not within double quotes.

2. the boolean values not enclosed within double quotes.

3. "true" vs "True", to see if that makes a difference ( upper case first alphabet for Boolean values )

Does anyone know what could be going wrong here ? What must be the correct body format ?

Thank you -