{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "16416",
    "entityType": "User",
    "nonce": "0x68540045fbbfb0532b99dc59652b5fc2b47fe092a04d7664b49441ae5af8ddc2",
    "signature": "0x93f7c1815b086c91129c2c95b4b053fc332c921662256c5339006e75e145b1fd2dbd63b0a383287118e049dc3f8d8291e7f108ad101b98faac076f06466a2cc91b",
    "signer": "0xE795526f098824a87a94C79d58a4299b51b20a3c",
    "userId": "837713671"
  }
}