Extrinsic 55647-1

{
  "heartbeat": {
    "blockNumber": 55646,
    "sessionIndex": 927,
    "validatorsLen": 4,
    "authorityIndex": 3
  },
  "signature": "0x6e29fe9a3c0103e5d874af38d6e88e7a320d99fa38cf3580bff2e6e0adb7490079c3bd4528cc40d996aae396cac4be248247dd4679a4639558560b0181458b8c"
}