Extrinsic 144342-1

{
  "heartbeat": {
    "blockNumber": 144340,
    "sessionIndex": 2405,
    "validatorsLen": 4,
    "authorityIndex": 2
  },
  "signature": "0x86efbb3642b8ae288acd79a8b2cbca27d6036654d43ecb74abb0a4391fd31d4be42717e389ec55089ef22bbafbbf054620f07249076514c22e8bf5325ee52181"
}