Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwHlCNpq0GuI/z/X5Bw1SJDSLASzI15PJXNAYcWuVL3K0UooZvPB3Ni6bmC4… (844 chars)"
  }
}