Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwF/z6iY9B8eHjZ24A/Do4aZReDxKb/BnwMiZo0PbLM4DQzlutO1ELvOKPib… (844 chars)"
  }
}