Extrinsic 48978-1

{
  "heartbeat": {
    "blockNumber": 48977,
    "sessionIndex": 816,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0x0edb47b14ae484842b4c54031460d934180ebe1b041006080df57b7b4989bf073a72d58726c1d3b2669911317bb5207c8229b48df95c3959e83efe31e7610d87"
}