Extrinsic 45078-1

{
  "heartbeat": {
    "blockNumber": 45076,
    "sessionIndex": 751,
    "validatorsLen": 4,
    "authorityIndex": 1
  },
  "signature": "0x0e64c5d0a40ffe0d0d90bb233cf3fd2a14b41053bc7493ecca4de076c83b670a7cc6d4b8916a147b9344b09db7ede9575276d3a576f57cb15f96e6023eeb718d"
}