Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwH69WdnI+2XhIR77ydHNEqJU2/iTl5KIqAZf40szaC7+Bmgbwixc0a4Jz+J… (844 chars)"
  }
}