Extrinsic 7419-1

{
  "heartbeat": {
    "blockNumber": 7417,
    "sessionIndex": 123,
    "validatorsLen": 4,
    "authorityIndex": 0
  },
  "signature": "0x32052aa6bd756583326b4886526527afe90f0f9008b421c5fa3c956281f4142e19df6942818aa039f3f5545cc9c6ca1a335c537e1530d6a6e1d73b9382bc738f"
}