{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "41804",
    "entityType": "User",
    "nonce": "0x109f539d8bea308db96652e91fcd8ae38482a7de4f74505a5ce4e1d419d97632",
    "signature": "0xe88b8776019fb32bf4f90cf205202b0c4265dab27c65956f0a72edd2ce12c7e53f4fa9968582f5bedc5156892bdd42d65475ad0e58f22720d7fb3d8b34b60eb01c",
    "signer": "0xA5fFfA5b8673Fb93490E3F9B0BeE58e1f0Ce1231",
    "userId": "508186998"
  }
}