Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwFQnsn3oFpGW7ciaP9MaSQxqN+DsMG2bWYzWLF8d7IrcVn9nwbKIeW4c8n6… (844 chars)"
  }
}