Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwGnLmY3y8QbSqD3j4FrdZRTX/tzpLJG1N4Xf2DmPnNVlQLP4s7Nkc4gzp4F… (844 chars)"
  }
}