Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwEx6G3459hv4fwpJ+XkkbvHd3dxVDXS4zL1qpI6m9HAXyP4HdgX8IcHjjHR… (844 chars)"
  }
}