Extrinsic 13368-1

{
  "heartbeat": {
    "blockNumber": 13367,
    "sessionIndex": 222,
    "validatorsLen": 4,
    "authorityIndex": 2
  },
  "signature": "0x76ab5c925036d4ec2edb711656af11e98121d8b80bf1cc88a953e8ad59e3192a40193ef6478bd44439616299d4ff933044935bd3e3095dbf846cf38d49b3fa8c"
}