Extrinsic 61481-1

{
  "heartbeat": {
    "blockNumber": 61480,
    "sessionIndex": 1024,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0xf66fce1dcd5da62625a8252dc197bb96f231026050ead1ebff0030c35cd78b6ee7a87f47217ad893985713a0668f1af337163379df4eaf1f263274ae19835784"
}