Extrinsic 3022-1

{
  "heartbeat": {
    "blockNumber": 3020,
    "sessionIndex": 50,
    "validatorsLen": 4,
    "authorityIndex": 1
  },
  "signature": "0xae257ba676b3ed52f8124567df707f03ce27f73dc0d65c66410e1762cfabdf0edb2d16f13af8c9365751ac010a3bd391e6cdb230ccb2ec3c16a054e44b8e158e"
}