Extrinsic 13358-1

{
  "heartbeat": {
    "blockNumber": 13356,
    "sessionIndex": 222,
    "validatorsLen": 4,
    "authorityIndex": 1
  },
  "signature": "0xc01b3e71a3de85e5c073ba36437d6aeac476b2a839efe5eeed5e77e60002f64e06a965e3b3308cfbeedb4719875ee7855a0c1ad0ec9f2100109fcfec854c0680"
}