Extrinsic 25148-1

{
  "heartbeat": {
    "blockNumber": 25147,
    "sessionIndex": 419,
    "validatorsLen": 4,
    "authorityIndex": 2
  },
  "signature": "0xd27a95041e7b8f8941878d2afb08a60aa1147833fb8a6548a0b21277ee68e9646f25c6372564a0635efcdc1a08420f9eb7bd3ee744f25ff59c72f3cf8a756083"
}