{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "983989982",
    "entityType": "User",
    "nonce": "0xcc617cefe8bdb86cbac5767121e90feafebb72a3951515a40c418b574452cabd",
    "signature": "0x3085ca21cc3b3317ec82f7a3eb246e0a728b4945b15156c4db0e503dc0899a52607e11e461b61c3ef667cb078f6f2aa4b3660708fee50cc83f45a333f62a75791b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}