Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwFMcEzDlYdCAifuIc+oBA7yvjg+QIIDgB1Y+QN9I9/QpVz+WSjSbHk9Vbfr… (844 chars)"
  }
}