{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2011566",
    "entityType": "User",
    "nonce": "0x422592facf2604374f99f361d3ea55fa3904eda539efd77e851df88ece0cc89a",
    "signature": "0xc4e37ef23ff04c4da71fb47fbf500ac50ccb96f5448f6f89d18826eda33842656e573e2a77eee78197df0c063923bab4b86c79a952497e92d61afc8442178c311c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}