Extrinsic 42988-1

{
  "heartbeat": {
    "blockNumber": 42986,
    "sessionIndex": 716,
    "validatorsLen": 4,
    "authorityIndex": 1
  },
  "signature": "0x08a903578c1166d046ea9603cf0b2eb84a99682a43eb5e7d33065391ff34a4143f77bc5e521bce640ff6d936955543084c850d5dcd59151a7231443e6cfd9d8c"
}