Extrinsic 25004-1

{
  "heartbeat": {
    "blockNumber": 25003,
    "sessionIndex": 416,
    "validatorsLen": 4,
    "authorityIndex": 3
  },
  "signature": "0x54962dd28c756c5f552eb529d646ea03b12d38fba952d5a603d8138b65f58d3b1a8c636da59998df3994b67a5c454d1f6dfefa6ce31c21a9f83ad94a77a8c982"
}