Extrinsic 51648-1

{
  "heartbeat": {
    "blockNumber": 51647,
    "sessionIndex": 860,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0x0aa070a6815cf4d0787de5518307a9ae5f94f37f3c801b5147a9201c45bcc02bf24097e4c9684029efaf33e16c5a6e171a7cad0f1d60b1d2d16de284e21ba384"
}