{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x144fd749a75b6430531bfabf6f85b93c508111fdee93af579d04c2bd1ab54c0f",
    "signature": "0xf46377dad78573e80338033b1542990a9d2007041dcb649cc284793beefdf88a1c2a2dfc36b978fa4a1a3768ae6564518328733b4f5f1a4d5a63565480a1d41f1c",
    "signer": "0x7C0D1eE6a24EEA79b6F6164AE96c2030f3639549",
    "userId": "484547418"
  }
}