Extrinsic 397231-1

{
  "heartbeat": {
    "blockNumber": 397230,
    "sessionIndex": 6620,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0x6ac1a09e2161dddd03a0e1f096e99940ef528c9355e7569a136fb5e2409bc55bd6f2008a2ad6cc3511779e5312ca4ba5a2d4f0e5aa9b47e15f9316260b8e3c87"
}