Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwExR41ctkZ1vqmm/DyE5EdmpLPhgdMNmKj3Zq2d+qrTUjADXoO/Nxk2j9/6… (844 chars)"
  }
}