Extrinsic 48709-1

{
  "heartbeat": {
    "blockNumber": 48707,
    "sessionIndex": 811,
    "validatorsLen": 4,
    "authorityIndex": 1
  },
  "signature": "0xfa00c6653b7c5bcbc8e83aea8ace855776c9a11faa79da4cbee98087411a893f7d145efa4df61ba569b58b53092a368cfb272f08786e016ebb2f31eb34c4a189"
}