{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xd53b84546350659ffa68853a63a96480f0481de42d5123bb4a00f0f93b886641",
    "signature": "0xae2f2071d06cf8e65de4e18ef5b0903f2c95c1179f9f1444b9ce184d50f4a1421f429eeaa1e3d701c2a9b0702be8018419e086a01c5bcbc12ad95828dced8b221c",
    "signer": "0x6F41AA445440dEABD6B921ffaF3e9F76138B658e",
    "userId": "155117491"
  }
}