{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "759448948",
    "entityType": "User",
    "nonce": "0xd2e744d4edbd45c2dc43bbbb598da406160ccb7c023dec42a62ee86d37aa53fb",
    "signature": "0x9185ba34ec323525eb31d45466954151aadff0d13e177a9fac3a5448098c00ec686ac72d665a36d9c31242207b638f5b24162e33a74fac5f93840824d63b6c261c",
    "signer": "0x8538CAf50424ECa240AD8E44836a2D420FEe1b8C",
    "userId": "406903561"
  }
}