{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "954228",
    "entityType": "User",
    "nonce": "0xb9d0160d0697f212897ca8e5d94dcf7dc2162f5f60ba913d72c9edfd5fcd0e41",
    "signature": "0x543c51e694373583412bee0a28fc19ddf8b9ce17c2b30b4c4e8cc71d6f0e0c145bbbd4e9b38b909e4bc708ea327fc0f7c6d4ebc56786105917c93055425abfbf1b",
    "signer": "0xC56E1ccbA93c1E645e5F27Bf8A5ca13eB7A5eEbe",
    "userId": "335878078"
  }
}