Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwGtiXmJx1W0GTCmHfHw2WWfU1tXP0Dcs9YF2nDeXO0Q0g/GfM4pEDUdp4K7… (844 chars)"
  }
}