Extrinsic 25280-1

{
  "heartbeat": {
    "blockNumber": 25279,
    "sessionIndex": 421,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0xee3a9df000be245fa477c5959e66a5e5d907c2d6a8c4634bcb2fbe188d5edf594d1d52c7470ad8b5bd0bcfb8e3c44581829b548d81cf12fc4101dd80e5ff1a87"
}