Extrinsic 207318-1

{
  "heartbeat": {
    "blockNumber": 207317,
    "sessionIndex": 3455,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0x2e785da6ff62b938a20d5aaddb086ce5c8dabb95d38fe4a2bac14bebef6b2304377ea53ea6c67b3a04821d1a661e34d483777074fcc10fb95e52bdb26c41cf84"
}