Extrinsic 138392-1

{
  "heartbeat": {
    "blockNumber": 138391,
    "sessionIndex": 2306,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0x9ae736cc8c9873dca4c3bd952d0e1b90aa9215d865dfbbaaf7b9b932456ec46d3ad1ec19a5757528f44df84bdf194e210853a0901a1d3b79bcf8f420fc0f6581"
}