Extrinsic 31705-1

{
  "heartbeat": {
    "blockNumber": 31703,
    "sessionIndex": 528,
    "validatorsLen": 4,
    "authorityIndex": 3
  },
  "signature": "0x28cb3baaf4c057241392e2caff3919a409dbeb3fcfdca72ca48f5c64c203c21f807d5a78d9d46354bdc073f198e708f6beb7c933b3d0d819e7979c6390403d81"
}