{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "354640",
    "entityType": "User",
    "nonce": "0x7560802d51d3caa4fa09fbba7b48f9c73af633df82ff24bd361bce6327816640",
    "signature": "0x921a2e796d50be9a4eea75c5f9d21f0831ec236f416ab08741aa45a792cbfaa3062d27cd09c6251f4a9893bf0e11ef19c65096012aace69366e9e322f53e0e8f1c",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}