Extrinsic 19098-1

{
  "heartbeat": {
    "blockNumber": 19097,
    "sessionIndex": 318,
    "validatorsLen": 4,
    "authorityIndex": 2
  },
  "signature": "0xce65d16d84627950454231c7bead161d582f978a25c0dc0e05d71ccd579c336e025863af2dc14e32f0cfd3d48fa662eec94518b4c863c8e646a3df499a775d82"
}