{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "258655155",
    "entityType": "User",
    "nonce": "0xc44d4e6c5c2add374d6132a71c157628bb34ef5c455c3350abf5c24fb0c91411",
    "signature": "0x9df28ebdbd1d3cee130080eb05ed91b28c888116c4623e25ea53b72a85d2b69304a63ce5a2142f5b22a4366efe5fb0b726dbf729fbde46a2eda20fd83aebb5331c",
    "signer": "0xF40Be525727aa96Cf61609f0A493d9E677f73a33",
    "userId": "159460377"
  }
}