{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "86546",
    "entityType": "User",
    "nonce": "0xef573e3d1bd2845d2bd5c5c4cd996eb3157a145cf8659dc7062e08adcd855a6d",
    "signature": "0xa0040625a4af02e9081c35d79022897983b6abc4be3860c8d7da1dd39cf0ff4a42e3202dd86ff698fe178f57972863c6c753b840092b7444abc2b7b3a6a63a3c1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}