Extrinsic 55627-1

{
  "heartbeat": {
    "blockNumber": 55626,
    "sessionIndex": 927,
    "validatorsLen": 4,
    "authorityIndex": 1
  },
  "signature": "0x42b959f75f43ec495e0874003e9e3c1109dfcdadca420f936d8863e9f0897645341d8683bbbff5f1b8953f18f22133523620b4c37bcd4088aae36ca24388e386"
}