{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x381e6374323124ce14639c362f1c33de1f8282862c03f591f0c9b151b44d5ffe",
    "signature": "0x29a2b28121cc4f834cb6dcd61a988186206010267fa94ea3309a915d63bb7960714a6e28834af93a86bf776fa3f8a3b5f5ab612830a28e22c3d83268d38df96f1b",
    "signer": "0x2D9056572e68b1F539F216341A7B9018d2552436",
    "userId": "709948398"
  }
}