Extrinsic 176776-3

{
  "heartbeat": {
    "blockNumber": 176774,
    "sessionIndex": 2946,
    "validatorsLen": 4,
    "authorityIndex": 0
  },
  "signature": "0xaaab485e013c4d6211fbaf9a8641d7baca0fe142ccd626edb66158854961aa333f18ddb3758a1d00a524643ec7de592b6e47a8e539dad4f5d167edd0665b3a80"
}