Extrinsic 30340-1

{
  "heartbeat": {
    "blockNumber": 30338,
    "sessionIndex": 505,
    "validatorsLen": 4,
    "authorityIndex": 1
  },
  "signature": "0x409c620648425297e25a1a0f90c82f536b64f21db49b1181ed8abe07332b2e3010f31cb8a8afc69ebd3f8a2acd81a3841d611f14f82ed95d49596da40f2a498f"
}