Extrinsic 45751-1

{
  "heartbeat": {
    "blockNumber": 45749,
    "sessionIndex": 762,
    "validatorsLen": 4,
    "authorityIndex": 1
  },
  "signature": "0x30a34b3addbdc4e8f78a9825057384ca9075d1b62efa18149743bcc1081d752e59ce72d7e805bb1d7f945daf599b72a229ac55dc1c3308fb336db82229e8a985"
}