Extrinsic 70754-1

{
  "heartbeat": {
    "blockNumber": 70753,
    "sessionIndex": 1179,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0x26f6e95d8aaf04eb8accd74b4c8c819d77a8d0a3ae5b36b1607656081b821629dbba2edb04e46dde6501545746621c01aa23f38d6d0bb8fd4cfd391e10997387"
}