Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwEv4P/YUFXmNPWfRp2EFCuFJ+QdYrmu/w5zS2grL9buJWYd4Cw3WbTgPxNz… (844 chars)"
  }
}