{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "212683",
    "entityType": "User",
    "nonce": "0x6c149fcf95d17d59750ae475b3525aab709c522c93b2908f8ec5bd3b196356e9",
    "signature": "0x395b23d42362818fca1e8c5a079d70dbc863ef8cd87f3a8abe870bb0cde5a0f2114503d20c3bb2f59ed0203c05c4d488bd4e581065f3c37637b5c2b0368ad5331c",
    "signer": "0xAAB9cff3D43A1b095421916d4C7D864d657286c7",
    "userId": "435031315"
  }
}