Extrinsic 25235-1

{
  "heartbeat": {
    "blockNumber": 25233,
    "sessionIndex": 420,
    "validatorsLen": 4,
    "authorityIndex": 1
  },
  "signature": "0x1cfd2fd94ddcc27b6120ed735797683cc6c4e28efe830b5ef62ecccd9430e4508ad4b323cef213f4f8d7764afc6bab448b3eea8b03055efc4581bfce6d6f4d81"
}