Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwGVHx6Egm/iBB2zE9I1BKjFP1zl2cIVlUiWtmK+KWMP/l/1gnggIm6NC4MW… (844 chars)"
  }
}