Extrinsic 6703-1

{
  "heartbeat": {
    "blockNumber": 6701,
    "sessionIndex": 111,
    "validatorsLen": 4,
    "authorityIndex": 0
  },
  "signature": "0xda243333fb4f1f2c336885cd4291e562632432ce2ff7584c1ed14e7cd1e88e50f1318db48ac72c7de0b0762a7f381c03ef7e392d1804152d44a7914c7a224d83"
}