curl --request PUT \
  --url https://crypto.westminister.tech/api/v1/auth/offer/id/{id}/available-amount \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "available_amount": "<string>"
}
'

{
  "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "vendor_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "asset": "<string>",
  "crypto_amount": "<string>",
  "available_amount": "<string>",
  "rate": "<string>",
  "min_order": "<string>",
  "max_order": "<string>",
  "status": "<string>",
  "pricing_profile_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "fx_rate_quote_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "description": {
    "String": "<string>",
    "Valid": true
  },
  "created_at": "2023-11-07T05:31:56Z",
  "updated_at": "2023-11-07T05:31:56Z",
  "deleted_at": {
    "Time": "2023-11-07T05:31:56Z",
    "Valid": true
  }
}