{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "702648814",
    "entityType": "User",
    "nonce": "0xf33bc62f1251dd4b241fbfe315f834d20b68ef318618ffe95f1805971cdad5de",
    "signature": "0x32b348344b451d6073217db44e9c2cc4ddc7aa63d56af196c926077118301c453bda013436cfde8aee84b1377481614b16492cff80d8f699c7bf07c0ec10f7191c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}