Extrinsic 88249-1

{
  "heartbeat": {
    "blockNumber": 88247,
    "sessionIndex": 1470,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0x70275aad646a5daa78da20dca9063f950156115a8e5a373d2afa9bb6aa3adb29f7ea69978892a15fc3030d9570a339d53e58859fd7c6112153e38291d3640883"
}