Extrinsic 7282-1

{
  "heartbeat": {
    "blockNumber": 7280,
    "sessionIndex": 121,
    "validatorsLen": 4,
    "authorityIndex": 1
  },
  "signature": "0x8a09d98bce35d0676ff7e7ce87fb8aab0a21016c60f87b39b21dc08986b5865bb37075fad2a4a02f4eaea74688cc2df5faeb391e923f0731e8ef228c174ad786"
}