Extrinsic 25516-1

{
  "heartbeat": {
    "blockNumber": 25514,
    "sessionIndex": 425,
    "validatorsLen": 4,
    "authorityIndex": 1
  },
  "signature": "0x680549e0afec0fae0bf8d237efc6ae4aadee1d7bb5ec2e57559168c114183e792d894dc5ae8909efb8ed32edc4aa06e7bb544b7f7002f04f4fda09d6493cf18f"
}