Extrinsic 34772-1

{
  "heartbeat": {
    "blockNumber": 34770,
    "sessionIndex": 579,
    "validatorsLen": 4,
    "authorityIndex": 1
  },
  "signature": "0x8e48ea92ac52ceb308505122d13cb2a118b240fff7124aa72d00a0b3c93c9e35b2048d7a9d4475124ad90e9b5442563217c5043c98a6ce7f2eacf559359d1386"
}