curl --request POST \
  --url https://sandbox.layerfi.com/v1/businesses/{businessId}/ledger/accounts/{accountId}/create-child-account \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '{
  "name": "Software Consulting",
  "stable_name": {
    "type": "StableName",
    "stable_name": "CURRENT_ASSETS"
  },
  "account_number": "4010"
}'

{
  "id": {
    "type": "AccountId",
    "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a"
  },
  "name": "Current Assets",
  "account_number": "4000",
  "stable_name": {
    "type": "StableName",
    "stable_name": "CURRENT_ASSETS"
  },
  "normality": "CREDIT",
  "account_type": {
    "value": "ASSET",
    "display_name": "Asset"
  },
  "account_subtype": {
    "value": "BANK_ACCOUNTS",
    "display_name": "Current Assets"
  }
}