Extrinsic 67420-1

{
  "heartbeat": {
    "blockNumber": 67419,
    "sessionIndex": 1123,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0x3aaa120938a96047b070a60bc7c6c0691e64dcf65f24c2802e17e2bc62a61a68b2b6ac070ec54bd08ca9c575f7d7d17088f808ec0294ea346305bdbedca73b8c"
}