Extrinsic 25595-1

{
  "heartbeat": {
    "blockNumber": 25593,
    "sessionIndex": 426,
    "validatorsLen": 4,
    "authorityIndex": 0
  },
  "signature": "0xa6896b46e24ffa332c8c165a418dd2acd8c84873098afef987324c022519c603cde3ee97ee527f89563b0964cee98730fbab70ebca190d734c8be50cc56a6d83"
}