Extrinsic 178783-1

{
  "heartbeat": {
    "blockNumber": 178782,
    "sessionIndex": 2979,
    "validatorsLen": 4,
    "authorityIndex": 0
  },
  "signature": "0xe26649a61898be4440cb02dd87d131740a1ef43b6629dd12a89ae22d3f220239c6987ed520bdef988b54579a2fecb3f2bf86d28d08a189502db0bd5da296a58b"
}