Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwEI0+43bhVj+X2pQHS8R7uEDSdGf8yFdsOcyASFZh5zQ2pFR7P4BV1OjZV6… (844 chars)"
  }
}