Extrinsic 17380-1

{
  "heartbeat": {
    "blockNumber": 17378,
    "sessionIndex": 289,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0x1692bd7f45c80c091fbc55b0db1565e671ff1ecc5237888583df69ef8dc2c61a0dd1c0cfaf576dffa52e6befe3b51cdb2b05aa134f0bb514f7b400ac40e6a183"
}