Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwA6gJkysBOOICM+A2rIAz3v7s2aLDxn8X4jILwR8L7xfmmIB1KP81Kw9Mur… (844 chars)"
  }
}