{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "778595",
    "entityType": "User",
    "nonce": "0x62e8c42e2a622057dc29ae97e003175d03756e1fabfe19b1729cf386ca9c2f65",
    "signature": "0xc41241dd358e721b7c0f5e70f15f345432ae317ae67e77ff706156f143bf79b13bab88725536980ef2200728da5cbb8925f7fa71e1b6a83b876225402bf12c9d1b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}