curl --request PATCH \
  --url https://api.anchorage-staging.com/v2/subaccounts/accounts/{subaccountId} \
  --header 'Api-Access-Key: <api-key>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "fees": [
    {
      "type": "ADVISORY",
      "rate": 0.01,
      "startDate": "2023-12-01"
    }
  ]
}
'

import requests

url = "https://api.anchorage-staging.com/v2/subaccounts/accounts/{subaccountId}"

payload = { "fees": [
        {
            "type": "ADVISORY",
            "rate": 0.01,
            "startDate": "2023-12-01"
        }
    ] }
headers = {
    "Api-Access-Key": "<api-key>",
    "Content-Type": "application/json"
}

response = requests.patch(url, json=payload, headers=headers)

print(response.text)

const options = {
  method: 'PATCH',
  headers: {'Api-Access-Key': '<api-key>', 'Content-Type': 'application/json'},
  body: JSON.stringify({fees: [{type: 'ADVISORY', rate: 0.01, startDate: '2023-12-01'}]})
};

fetch('https://api.anchorage-staging.com/v2/subaccounts/accounts/{subaccountId}', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

{
  "data": {
    "subaccountId": "ec761b5e-fd2c-497a-a9a0-f8738ac97bdf"
  }
}

{
  "message": "Missing required field 'amount'."
}

{
  "message": "Missing required field 'amount'."
}

{
  "message": "Missing required field 'amount'."
}

{
  "message": "Missing required field 'amount'."
}

{
  "message": "Missing required field 'amount'."
}