Extrinsic 55031-1

{
  "heartbeat": {
    "blockNumber": 55030,
    "sessionIndex": 917,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0xac97d807d71a1a575e4f0fb7ee5b3935aa332ef4b3e04ee0916a86376886f304debaa581a0771f3fa33b4dcbbfd33847d4e52a8127a9b628caca4c25cb3bd386"
}