Extrinsic 7189-1

{
  "heartbeat": {
    "blockNumber": 7187,
    "sessionIndex": 119,
    "validatorsLen": 4,
    "authorityIndex": 2
  },
  "signature": "0xaaa95d9d550cbb2ed7fefe0a8c16550e0b9b5e6b62da1da5fba120392158163fe2a10038a4b32260b038a1babb13ba495f70fbd5b5dddbd5ad4446e771b64e8f"
}