Extrinsic 59890-1

{
  "heartbeat": {
    "blockNumber": 59889,
    "sessionIndex": 998,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0xf4f4d2bb6f2e1a77493d020c7841424d340e0dd97ca81c6ccf8e5b735785d26e197285e4b440049e5dbf52c967a6d96d22f8b9974f1004bc487b222b8119d78b"
}