Extrinsic 17689-1

{
  "heartbeat": {
    "blockNumber": 17687,
    "sessionIndex": 294,
    "validatorsLen": 4,
    "authorityIndex": 1
  },
  "signature": "0xda3c06dab8ef2fdae8ae921ae1ff4d004330ea950dc4516bb0f62cef7692553bf6801e61f3fae133d3bb00a2b4d8d5eaf78ffbbfc511c43ef6bafbf3585f398a"
}