Extrinsic 17593-1

{
  "heartbeat": {
    "blockNumber": 17591,
    "sessionIndex": 293,
    "validatorsLen": 4,
    "authorityIndex": 1
  },
  "signature": "0x740f00ae40af7d8e26ec9f5dadbffb6af56c7064de34c3831c10369b3ccc3965c312e7e5930e1978b015b3978111a2fe2b90eebb04a1c1e017716ad8ceede182"
}