Extrinsic 25427-1

{
  "heartbeat": {
    "blockNumber": 25426,
    "sessionIndex": 423,
    "validatorsLen": 4,
    "authorityIndex": 0
  },
  "signature": "0xf4a2a73b54f2d9c5e7e1620ef0676cf87528a67b76ecd0d1dd3f1f8e0439b614d2557e680e0091adde0b2d7b36b5153b5c5a13347cea12644f9b85ffaf540b82"
}