Extrinsic 25524-1

{
  "heartbeat": {
    "blockNumber": 25523,
    "sessionIndex": 425,
    "validatorsLen": 4,
    "authorityIndex": 3
  },
  "signature": "0xe6add0ff1a8fff6858e35d7a2210d58a026254413c751778bba4ac8ce2da4162848f40de5bf20b1c9379f90e92f129414b75b6a53ac59feb2d5660757dae4089"
}