Extrinsic 25762-1

{
  "heartbeat": {
    "blockNumber": 25760,
    "sessionIndex": 429,
    "validatorsLen": 4,
    "authorityIndex": 2
  },
  "signature": "0x7c9ec4119180c975955a8c37a385829591db42e980d74f67b84a0340908fd558621d24be9ff15233328f1f91d00602d9e7211f7c15e810a660adcda29413f286"
}