{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "666092734",
    "entityType": "User",
    "nonce": "0xdd31dbf408e0ed6cdf8c687d20992137c640079ea91fe3fd3a3fedf45f0c3d7c",
    "signature": "0x7e3d93fdb1761aaef697d617b5e9b9e8c3ba1a35bafc999f0b2645b2824c9dcb6dc4d874acf382f0ef0c381951980822e9d17c005e03fb74f411fd4128e693a51b",
    "signer": "0x9BaE2e1849D39772019b4AC3468e938a232f73ee",
    "userId": "948584098"
  }
}