Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwEGUz0zjZFkMPXymsGxqBZhwgkQt9wxh8/2MIR3Tn9O5iKeu8QmHhR6v0J5… (844 chars)"
  }
}