{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xd4e4fa022ad24e207f7562499a923dbe3ddf18e6f5603435b3f62b6cb2060b72",
    "signature": "0xe43bb98734c73ef7a853802230600596f6c982a5a71515ce09e5dcddfc2a8e85282435f9b746340f45a34d72f115346e46d7698fb56d8b7cec84a08c84b5c3b71b",
    "signer": "0xf95969e92BFF8C7cf42923fABC371C2D2B9D2f56",
    "userId": "614520593"
  }
}