{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "227970",
    "entityType": "User",
    "nonce": "0x4c662dfebb35a51b8d08a3404e1f43b69df96d994b1010fd1ca0c86f49ef0527",
    "signature": "0x9af49f278e5fb25ac01dc31c6a9b6330b84d98acee95548fea81657359a9e3fd285c05e26e23b2bbc11de65b44a99a68f1558b30d290c47ccae4d1fed2141cb31b",
    "signer": "0x12EaF77464824447aA995e75Dd707B3e5246be9C",
    "userId": "409175645"
  }
}