{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x86144521536516b98f2a3ed7d7a589a15b498c990ab160b260d873348df9eb56",
    "signature": "0x924a1cb720e8bd21e91aaa457fe503875e74d64b69bf68e85a8ab4d4bfa5b306019f0a191bbf32dfdd7529534aacffa2cf0e6739db0ada82cafd1aefce3196a11c",
    "signer": "0x3066E3A795c995457a6dFdA2866c82734C85b8F6",
    "userId": "484599972"
  }
}