Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwC3cz9tQDZmv2CXd54qJJaCfP5ItX6PJvnL9+n6jPkoayVNJNObNe7qc6pC… (844 chars)"
  }
}