Extrinsic 14259-1

{
  "heartbeat": {
    "blockNumber": 14258,
    "sessionIndex": 237,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0x9ca9d286a03e266f9e7e9671d2df124ccb504e4b632040ca723ea0673414642510955b9acfb54d6a2b351a47a6526491bc28240762e6939c256327f0a16fbd82"
}