curl --request GET \
  --url https://api.getsly.ai/v1/v1/wallets/{id}/balance \
  --header 'Authorization: Bearer <token>'

{
  "data": {
    "wallet_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
    "currency": "<string>",
    "available": "<string>",
    "pending": "<string>",
    "total": "<string>",
    "held": "<string>",
    "as_of": "2023-11-07T05:31:56Z"
  }
}