Extrinsic 65921-1

{
  "heartbeat": {
    "blockNumber": 65920,
    "sessionIndex": 1098,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0x6835f2766dbcf47161e3e4823d939599b35968d0874ed5aca60d18a2a5663e22b4fb1679bee0a7437c5594d837ae563a722184979f502ed07edddf984777d588"
}