Extrinsic 90746-1

{
  "heartbeat": {
    "blockNumber": 90745,
    "sessionIndex": 1512,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0x668fa4623da61ed8f469aed81a2e5c2e9d9a0dfcae67a830f465d2da92c55f4450536b7beb83111debfbcf26e97ae2d3b079daa53c0b178bda8be7760b7eac8b"
}