Extrinsic 37060-1

{
  "heartbeat": {
    "blockNumber": 37057,
    "sessionIndex": 617,
    "validatorsLen": 4,
    "authorityIndex": 1
  },
  "signature": "0x9a5c5deee26cb32fc249fc4d796972962b4486c1d50a9a23878eb4877e76a85dc4d48b91bb57a57e5b521dfdef624ee20158de2ed6b9490e06f0004746aebd87"
}