Extrinsic 69217-1

{
  "heartbeat": {
    "blockNumber": 69216,
    "sessionIndex": 1153,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0x6e57fbd7ef34604f0978dab322cb375727f1117db06c5766e66566ca7903e032c634446e82d666fbd4db40077b77ac9db9d0f76c603808303cad015019d7b48a"
}