Extrinsic 135217-1

{
  "heartbeat": {
    "blockNumber": 135216,
    "sessionIndex": 2253,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0xa43fd75ebe63293c3547eb69ac574f501d477e99745aaf7b5f60d535d7cad95d6873f8e25fa4e60f6ce17697a5ad52814c9b879df523636abb13776d8081ea89"
}