Extrinsic 137178-1

{
  "heartbeat": {
    "blockNumber": 137177,
    "sessionIndex": 2286,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0x76750e09423614d5689475e9c24cbb36ff099d1e37e8ed091850c5a349827946cc39c1c6bd0d65841be944cb8c36faedf2e46f759c18dcc26059ac27fd9f0180"
}