{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "212611",
    "entityType": "User",
    "nonce": "0xb2a739638054f8e838dc43dfeaf5e4d0e35318d6fad777995a98af126137d98d",
    "signature": "0x9d23a58eed1a0bbd1716ffe39d7049caf5de012aacfd8fc89c43daad589848b1359a0348bef55164ee2f942cd26c76b11b20710765e395372726328e946491c91b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}