{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "381647",
    "entityType": "User",
    "nonce": "0x3627bd4143f619917a1c2cad364dde6eff6e9a0ee3a84edbaea159130300ec48",
    "signature": "0x9fba4d6142684d8b23d96ef7d78f528a5a175aa8bbf62fda06b5d519c4ed7f1a55f946a417bbed1c9c7bec5e65e1db755477917742bb5bb5f5f3a6872d759ece1c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}