Extrinsic 77960-1

{
  "heartbeat": {
    "blockNumber": 77959,
    "sessionIndex": 1299,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0x9e1196e169239ea809e246186b24c2af3ca51a942df199d128e9f640c6a3fd0c028bc65da0d4d222a059d05d6b03256da57ca4fc6b6312625982aebbcf3ee080"
}