Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwGPm9XGeOFhkFKlvcZtiYSaqmYE+mxzqSEzV2Wb2I0N0nF4MvCTcOuZ3G/4… (844 chars)"
  }
}