Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwGz+fvt3n5kXp0FgAWVVXyK9ESXUpgZrjufgxK+B3QDMB9qm4GuuEpppQB/… (844 chars)"
  }
}