Extrinsic 142874-1

{
  "heartbeat": {
    "blockNumber": 142872,
    "sessionIndex": 2381,
    "validatorsLen": 4,
    "authorityIndex": 3
  },
  "signature": "0x4047b0ab1d994fe86da77eb58ae354eef386a10f16b377f69f21836a82560024eba1064008788752f43425f9565a036597eded27f4108fca760d9fc6b7c27782"
}