{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0xe33b4a2647c857267af32cff975a3a2d7453802d4f4c11cc82885779bb8e5db5",
    "signature": "0xbf2d669319768462ed240a57de96ce86f48316a0347295f3886c68437c9602af456f659f76dd88e96c6e0dad5bd0fce26cc1f349f756d14933d87ac7f4dc9c5b1c",
    "signer": "0xA5fFfA5b8673Fb93490E3F9B0BeE58e1f0Ce1231",
    "userId": "508186998"
  }
}