Extrinsic 23329-1

{
  "heartbeat": {
    "blockNumber": 23327,
    "sessionIndex": 388,
    "validatorsLen": 4,
    "authorityIndex": 2
  },
  "signature": "0x1ce3cccf25ae0069a1234b4c9d076264deb7c5e72c6943c8545212e8d201b8518e9feefa4fb2a553152f5228dcfe01ce3405f34531432ec4c19ffeb66234358d"
}