{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "37943",
    "entityType": "User",
    "nonce": "0x7e47d15472433129567ee200d0a4972ca50883556190c7fc2d2aa1358ebc5eb0",
    "signature": "0x6523ccc53df69fd86362ed4e6ec6d84713bf4e0d2bf1312c5a6c0663e6cfed09363eb195a16e28c9705868e546e776811daa8c712cf69297f712de301d6ba3681c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}