Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwGf2mcsKshRBBl8HXSn4wHp+BN9PSNE6M7rZSy+gCZd82IC2wnuCGnxv8VJ… (844 chars)"
  }
}