Extrinsic 13417-1

{
  "heartbeat": {
    "blockNumber": 13416,
    "sessionIndex": 223,
    "validatorsLen": 4,
    "authorityIndex": 2
  },
  "signature": "0x5c512e675392d5df86ac79fce5cf92fed8ca1a37aba8f07e3aa724db87b59905a558bc4aceec55eb7d432e90cae3fe6515b05adc5cd246f16b46f0e1e849c988"
}