Extrinsic 55652-1

{
  "heartbeat": {
    "blockNumber": 55650,
    "sessionIndex": 927,
    "validatorsLen": 4,
    "authorityIndex": 0
  },
  "signature": "0x7429fc1bd19837c46bfc6fab26055ed7b02a3ddf3c3928ee675aca0b3ac19700020823d3bd48c30ff0d963066dbbdc0f6fa1bf00c454d0fd788152286e8cac82"
}