Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwD/1QiMVhmDCZ8bYDom2RG4Ttax1E+fN3XUmWVYPH6Z1ikqXmlgvvk+8xUe… (844 chars)"
  }
}