{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "239139",
    "entityType": "User",
    "nonce": "0x89fc8c980e1be8950f1467d0ad9a937533edf0d60a5c37c8bcec3e6e38982283",
    "signature": "0x4a925f4b4c6d665a0cf5360167131cdd4e71d01f82677396215fba21e69f99652965f86fd1fd5328f5ce180dcf3f788c510ef6d171d9feb2bcde415327c588101c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}