Extrinsic 137713-1

{
  "heartbeat": {
    "blockNumber": 137712,
    "sessionIndex": 2295,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0xcc9954ac6511971f7f3c9240d093a93887b97caf2a1fd051f125a93dd283ae75fe7935a028ff4c6685fbf58e81a7c9ee18cdcffaaf505621a44ff6a27dba9586"
}