Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwIXDDGxLEXKfKgjcVv3PCvdnfgSGV3rwKWR8jPBcd+cqz05Q1gNGz9ksqcJ… (844 chars)"
  }
}