Extrinsic 122253-1

{
  "heartbeat": {
    "blockNumber": 122252,
    "sessionIndex": 2037,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0x66949d4c08d31674f96063d4dc7d36720b79bb8e739d84716ac3c91699ce181c5969b807a85fb83282989f506536ab11e663859de2cab71f7a2fc7229e48ae85"
}