Extrinsic 56738-1

{
  "heartbeat": {
    "blockNumber": 56736,
    "sessionIndex": 945,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0xe8b823ab5a3e2cf8bd8cedc70f0986736dbdf01c1df9dada2d59beec2879f5253fb245651bdf90484bcc46787bcdadf06f89a5867d8f9fa34ed4a8775e330185"
}