Extrinsic 177744-1

{
  "heartbeat": {
    "blockNumber": 177742,
    "sessionIndex": 2962,
    "validatorsLen": 4,
    "authorityIndex": 2
  },
  "signature": "0xf22596ef59236551f85ce20bb06fa87553e9b8b555b8f6879dd8f394c09e6a1dd95f2f8789b71e355f2dcdbed267aa486e69cd3152ff426b1c8374c2f3161e8a"
}