Extrinsic 71252-1

{
  "heartbeat": {
    "blockNumber": 71251,
    "sessionIndex": 1187,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0x24b49dbd5c128dc43972a85dd4556e220e999907773c5dacdc96a9194b836a400cb5fde21c0e1db684a981e77ba9904c71951317d323e008e296b94a7e68c08e"
}