Extrinsic 54287-1

{
  "heartbeat": {
    "blockNumber": 54286,
    "sessionIndex": 904,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0x24759b492452e9baa15b7aa1765eb6b552650b82b0c9dc7e3dd9ed21a9bcbb45eb3ad7a67309207fd26b2f65e5a36eb7de6231bc17bffe5253bd49c15f45498c"
}