Extrinsic 40835-1

{
  "heartbeat": {
    "blockNumber": 40833,
    "sessionIndex": 680,
    "validatorsLen": 4,
    "authorityIndex": 1
  },
  "signature": "0x40e48ec359e3a465b7ebfe2a53a4cb046e4c8f38a15feeb3f129d53cd71aea2c03b0aa1dd42061fc22b75f2f857d6cfcd4c3b25140f28e45232a186c11862f8b"
}