{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "325380",
    "entityType": "User",
    "nonce": "0x4712372066b45e2eee7fa4f904f2b6bd751cf4417d10176e1300719d7ed0c598",
    "signature": "0x2066da6386002c0859f71d9fbd742dc97a18de4a2233cb15041946cf35a9c99f24b171b527e6cc8d90b5e9911f25c92141d6ec5abbf821e3ee66bff38540ec641b",
    "signer": "0x292eF57C1FAAc86008ab58D5116e0ba424C9189b",
    "userId": "721084704"
  }
}