Extrinsic 177265-1

{
  "heartbeat": {
    "blockNumber": 177263,
    "sessionIndex": 2954,
    "validatorsLen": 4,
    "authorityIndex": 0
  },
  "signature": "0xbe4d3d3784f5f9c2ed00f775e7203d982504a960d2036e84246b2aae0fe931369bd8addd3cbaa8d800ed4040ff6f46ab92bb2e40d60dba43d64d50d74d0aa68c"
}