Extrinsic 58449-1

{
  "heartbeat": {
    "blockNumber": 58448,
    "sessionIndex": 974,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0xb6fea0b871a5f1d2c0a8e71d03d7fa5cf208eabb9989c1a59c0734836c0f6760e3c0a9a886beb82029ab117f4c1f08853889336b35202f1b1d097fd227c41980"
}