Extrinsic 144571-1

{
  "heartbeat": {
    "blockNumber": 144569,
    "sessionIndex": 2409,
    "validatorsLen": 4,
    "authorityIndex": 1
  },
  "signature": "0x4e1a6901079f4d864647621d3bb35d33f1d6dc3d7a521970411fa1db43dc38329bcd5a102fa8e25638ed4a50c0c30ba068d89f5f7c32b887883a230506e54187"
}