{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "494018536",
    "entityType": "User",
    "nonce": "0x543db04db4e7dbe793f44b1b7d9ba23f0791d4c8ce278af41da963c6703ceb77",
    "signature": "0x9903c3024a3809fbc33e3b5f272677ebd14965a24e0ceca694e8cf7df549e6c45d5f0c59c5dc2aaf80c84cb4f66b0573099e12804d36ba1de53d10f0cc9bf4d01c",
    "signer": "0xE795526f098824a87a94C79d58a4299b51b20a3c",
    "userId": "837713671"
  }
}