Extrinsic 41149-1

{
  "heartbeat": {
    "blockNumber": 41147,
    "sessionIndex": 685,
    "validatorsLen": 4,
    "authorityIndex": 3
  },
  "signature": "0xf4d81dbcd4b0ec73da4d1fb7fa8136c6757ba6e03f930a11eac847d1296416404bc84de513bcc296f847f2317269cc9f920b84f6caf04221cfa78d831262ef8b"
}