Extrinsic 10420-1

{
  "heartbeat": {
    "blockNumber": 10419,
    "sessionIndex": 173,
    "validatorsLen": 4,
    "authorityIndex": 2
  },
  "signature": "0x3ae5a85a770c2aac77031b5eaeadfef576b7c0ac5e82f1925cbc1d593fac8a4a183ca3806196fa402cb3078bbf44f57b83290e0f6c38d0383bc1572b228c108a"
}