Extrinsic 22446-1

{
  "heartbeat": {
    "blockNumber": 22445,
    "sessionIndex": 374,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0xc64966b705e4cde6150ba9dd51eb00d37dc63ef9262612c824e05188373948108f7c097ad8392b40a7bec09d7b10d2d5198a7efb36bc242cf9dd9de401c02b87"
}