{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "382534",
    "entityType": "User",
    "nonce": "0xc8464c730eeb4ca2b0bef80aaeb718fb380371bb5fb53576456d5a76534fac55",
    "signature": "0xaa434fc074a6a63703cd3098edcec6518cf39505eb6603ac2d507f6ce4705771517e45d6238dbc263f95f10d39c8989a4ac7ceca9582cadb11ab5dcf0eebbab61b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}