Extrinsic 25908-1

{
  "heartbeat": {
    "blockNumber": 25907,
    "sessionIndex": 431,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0x78b073a5f22962514390c79f5a1a96d40a09b1dad5fe6a30ab418a97831cf8705bcfd6c8c2de534354fa257785271f9d6c000a9038a61bfc777d7a0cd2268d85"
}