Extrinsic 16180-1

{
  "heartbeat": {
    "blockNumber": 16178,
    "sessionIndex": 269,
    "validatorsLen": 4,
    "authorityIndex": 1
  },
  "signature": "0x386b49a97b6fd82c7d7b760fbe664fd71b6b7d7f9321e4d296cd03d0bf89404bd590b60f7b14dd6144ae8e46d08eb9f4669986f1cb4f544fcb10261c4d41fe84"
}