Extrinsic 13417-1

{
  "heartbeat": {
    "blockNumber": 13416,
    "sessionIndex": 223,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0xa4644d38fc0ede7d5e6aad3367e15a125904cea1eeea9d1d26af13a67524bd51faf7026ec8764299bf5a17399d8c43a0df96d643370fa176788a2f4f49133785"
}