Extrinsic 159768-1

{
  "heartbeat": {
    "blockNumber": 159767,
    "sessionIndex": 2662,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0x982a38e4fab6768593732b5fda07752aa95038233679a792a13b0ce87924b318a9561a54ea8684566f5d20a85144cea364edc0b32d51763dfa6d9f2ec6a9d186"
}