Extrinsic 13161-1

{
  "heartbeat": {
    "blockNumber": 13160,
    "sessionIndex": 219,
    "validatorsLen": 4,
    "authorityIndex": 2
  },
  "signature": "0xa6a73ddab7c7e30c81adc3e9298febdeda48b2a163dbe1e11c1a0db54152be0cb9fb0f3aa6c58d7bef50a866f249ad24c17370f1d3ff9dff54a399feccfb6281"
}