Extrinsic 17203-1

{
  "heartbeat": {
    "blockNumber": 17202,
    "sessionIndex": 286,
    "validatorsLen": 4,
    "authorityIndex": 0
  },
  "signature": "0x92b66e6614babcbe23a5228da79627275b1ee149c231d5cf9f9cb3346c761601f125ca797f71542bc226944ed410276ff06d81ea2649b941acfdee79cf365481"
}