Extrinsic 25576-1

{
  "heartbeat": {
    "blockNumber": 25574,
    "sessionIndex": 426,
    "validatorsLen": 4,
    "authorityIndex": 2
  },
  "signature": "0x42faba2186c0b4f1954c2ad8bd6f2f0c20c5fa73156bd7268fc380879c7efa6f6ef670645e96d41773d59e12409817dde58b90e2c91d90af8ad51f2bac52e581"
}