Extrinsic 143619-2

{
  "heartbeat": {
    "blockNumber": 143618,
    "sessionIndex": 2393,
    "validatorsLen": 4,
    "authorityIndex": 0
  },
  "signature": "0xbe3b681125d97c326896b71119aa5657c98107dc535305df2622482333bda71f514f8ae0646f4ac9e3434838f509688c002aeeb4e18c6c3cd9b3fa8aa764338a"
}