{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "103353",
    "entityType": "User",
    "nonce": "0xb044dd9f3771d114d76fb95c058b469eed6adf2716906634b21f675f2d541a1d",
    "signature": "0xcfa932f493955efe4a7ff9c6d84169b9afa0a6b9b60a315cfb1430064a74e6260bdd6f914e8d05222ba62673b4c2a97a5b78d2bafd280232782d8275b74918361c",
    "signer": "0x005385507D169DF7Ad14f23b728248Fe5464Bc26",
    "userId": "303866152"
  }
}