Extrinsic 56867-1

{
  "heartbeat": {
    "blockNumber": 56866,
    "sessionIndex": 947,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0x0a1eeda5afa419127ab401c2df52655f96c8741408eec808574f73c203f1a61f8f3579f008af17e79d7ef57b1650d27e3d1c205cfff4dc2af3edd34010162f88"
}