Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwBy+ZGKmNKpWzv1r4PrWDMKxLreH2+Rj0lwr5zHISmfkg6t4CfP1fD2vMT9… (844 chars)"
  }
}