Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwG/28s64uqNxRO3aqU4R9g0NuGdPiYpZbaJMK6X23jFBT1nrQnp7K5YnH1P… (844 chars)"
  }
}