Extrinsic 25223-1

{
  "heartbeat": {
    "blockNumber": 25221,
    "sessionIndex": 420,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0x22a525e8fbc93b60a743eef86e6b25dfacfb10ebcd2c521591635aea2df9df5428849939f7994582423ff45fac90617bc0ddcbe3668d5a542d61e5f8904c6383"
}