Extrinsic 77448-1

{
  "heartbeat": {
    "blockNumber": 77447,
    "sessionIndex": 1290,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0xe2cc639d0f20a6e26394cbc261162d74097bc4f405e3f87146c9e6504367c958a2b7a2f2c7a38d832795115359d196ddbd42fe08dc3da3e7aee8bf5596190e84"
}