Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwGDo6H94iMdGNScPsEayIFZhHzRJO5KG9+9ETzYnXzTGWHxY01JFY4H5FE6… (844 chars)"
  }
}