{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "103994",
    "entityType": "User",
    "nonce": "0xc3771d32eac1a62c69d861adf4c1f1ac2a1c8e3a4eadd378906fc4481dd3a45b",
    "signature": "0xee2cf79470971f48616b347c7e76399f091ca90127cdd5b531b5aa04abf06a66526f9a0cf49be8bf9d90aad22f87afc5cc0cf4f4372fc0790e97ade2f6f588931b",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}