Extrinsic 22123-1

{
  "heartbeat": {
    "blockNumber": 22121,
    "sessionIndex": 368,
    "validatorsLen": 4,
    "authorityIndex": 1
  },
  "signature": "0xfafd3b77c1078ce192e59434df2204ca983f9712765d34796fc7098fabfc37753181ec3f6f79bae692c6ed837c73e2ea58fb70237d18232229cc1b6b2a18ad8e"
}