Extrinsic 37469-2

{
  "heartbeat": {
    "blockNumber": 37467,
    "sessionIndex": 624,
    "validatorsLen": 4,
    "authorityIndex": 0
  },
  "signature": "0x167a6a3014a63334df31f1d0e8d23cdd8d15723510e783d75d1d7700e4d638666b9ea9b345135e4414904ea329c8721dfbdc7dce06a3565f148d5ef56860898d"
}