{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xae9a1332810722491d677329b5682b1f5456b7fd687ba5b6e54ad393e73b04a2",
    "signature": "0x28742c0aa7234bc1d052d4f9da4b8e9085f1bf01623e8d5f0f0184c20a1fe864350ecabe58cce70cbd643a0ab76810f88df1fd7346975c5b71dbde3ae82c6d921b",
    "signer": "0x1D9e1d82A512b9A5b9b44ca178151B46959E9E5a",
    "userId": "888092692"
  }
}