{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "329516",
    "entityType": "User",
    "nonce": "0x36fa5cc51776f74cfc78ca9d95e39a44d1e568ff63b722d25c32f82dd2ae76c5",
    "signature": "0xc53949c4be96c8726f4dcdec213a8e627ad97d369b0ad8041fcb1b19c4bc51090fb84e3df86ab9a745336aa16a83047b695e8ed2e340e58174056c39d19dcc801c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}