Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwHBGAc7uFAwdOdDL/UmlLBqQF6X8EcsOtv+tGtrB8H1BxXPCy6XEQ0nyQEh… (844 chars)"
  }
}