Extrinsic 11917-1

{
  "heartbeat": {
    "blockNumber": 11916,
    "sessionIndex": 198,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0x0a89b175118819f5107975ee50ec318569e332e9a85436eff5af949ef45cde7c66f2022e1670d4f1e55ffa382a19b56054b63778085b5771ee2f4d0cf50bde8b"
}