{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x280a2c926b91ca6d07ef6b1c0dc0d191b710d4427f38aacf3cffda43c58af269",
    "signature": "0xa4d99bc28cb006a279e3b334fd447f6cef797dede64cdb7f42c890c770b823d47db25ec27c719238e375ee17d7e17c5dc2a924cb835eb9ca678247eacba5dd5d1c",
    "signer": "0x0e352e33D5802c95523E3602aceD357C1B333c63",
    "userId": "374449960"
  }
}