Extrinsic 66103-1

{
  "heartbeat": {
    "blockNumber": 66102,
    "sessionIndex": 1101,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0x30554e185855c2bff061454d25e46e6e0f7f737812fbc0dac2a85552da62bf6d041bf98997583780dc27979346244b18caa51e08db320dc4282e7f6522ca6686"
}