Extrinsic 30448-1

{
  "heartbeat": {
    "blockNumber": 30447,
    "sessionIndex": 507,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0x4a7c3aaa0af5b9558e1fd8ac15542f81b2d9830af2808f1ff46c52a2acaa3b507d5e5995e00662fa3cde5717d236ede4f24115f87dc35d94fc14117a4853b884"
}