Extrinsic 7178-2

{
  "heartbeat": {
    "blockNumber": 7176,
    "sessionIndex": 119,
    "validatorsLen": 4,
    "authorityIndex": 0
  },
  "signature": "0x8c40c7fa65382bb76a7c9b641a5d190b28e1193a9128c8db0c4280dfe765a277c6bc61fdfa166153aa7af89bcd4e16a76ed524c102f518c4785e74075065738f"
}