Extrinsic 13645-1

{
  "heartbeat": {
    "blockNumber": 13643,
    "sessionIndex": 227,
    "validatorsLen": 4,
    "authorityIndex": 0
  },
  "signature": "0xa0bdea895bae3ff85586dd6594f0f9c7bc1f146946be5da384b621b71fb8d1024a7f789dfe2a43d782a10d82fa4b378075ad123a86fa2424345a6b90373be78c"
}