{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "64605",
    "entityType": "User",
    "nonce": "0xfc6dfd8c7a5505e5ced53e29eb58f36c4d99c9f16bd069e80be8a4e65ccb62e4",
    "signature": "0x88ae7747369b9586453aa1afc23cf64b6546c8134d4f00f1fe4fdfaffa14631621a62d088b9ed8015cd761737fd976e1d03f46f1e66f0dbb7bee5320f7829ad31c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}