Extrinsic 177279-1

{
  "heartbeat": {
    "blockNumber": 177277,
    "sessionIndex": 2954,
    "validatorsLen": 4,
    "authorityIndex": 1
  },
  "signature": "0xe2d97625c3e4a6520bee7c74fcb7db2653cf9566c8b3f60921c8a551e28350553c5a7e4efe976dc182a5fa9d614660f7ec371e8adfdefa4e249cb88b35c9d284"
}