Extrinsic 25483-1

{
  "heartbeat": {
    "blockNumber": 25482,
    "sessionIndex": 424,
    "validatorsLen": 4,
    "authorityIndex": 1
  },
  "signature": "0x26b0f6964ed48c3fbcae901aff84fc9dcb54375e2a62573ca2a02aa06f79d33d9db92259967979b9570927da9da85070401264b4d3b8e0b28ec294356a46928e"
}