{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "75260",
    "entityType": "User",
    "nonce": "0xc978f20a27f6b61cfa8d29655d9b3258a1fd9efb5249a6c581453626f97aef87",
    "signature": "0x60222dbca503e28302cec0146bcf60f724fbf0dbda81809fb96aa49f4c8db5f51da1f5c22aaf17ef2736af9a37b142fab72da0bb04b7e8e16ba64c38b63f197a1c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}