{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "104457",
    "entityType": "User",
    "nonce": "0x8a0ca36a18645fab1bdedb3126a6c3ac134866cccea6cdc8190fd69eed79b0ef",
    "signature": "0x45ddf6c5cf1371f6838b367b26b4bab4d621eef03b94ee6e285d2e80bcb6c40658e154f9d01a602fa4b61aee116f6518bb40fcde47f6b61f4a0a6eea0b0bbf481c",
    "signer": "0xC965eCf215DC75172bD11e8E1dbE76EDd838886e",
    "userId": "260849"
  }
}