Extrinsic 397350-1

{
  "heartbeat": {
    "blockNumber": 397349,
    "sessionIndex": 6622,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0x10321ee5c3cd3619e8b3b9497066d616be234cc47864bfe573b785dc8430f80ad6f64a24e4a3b0f2a92b9dd81ce235f7ed95530c46e0aadd8b503a0935bf7c84"
}