Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwGKB1eZ+ZDtIX34j3vY1SAc9mK3i0GHdH7cM/KBA9i2Hzb+rxkD9cvbfvba… (844 chars)"
  }
}