Extrinsic 25536-1

{
  "heartbeat": {
    "blockNumber": 25534,
    "sessionIndex": 425,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0x58fa325517ab1350075549613be0944d31580508845c38849d1ebd333043a55d7b84ac1ab62bb460c6ddc59b43374e9bf63247c17494009c0622ef1fd8c77488"
}