{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1657773",
    "entityType": "User",
    "nonce": "0x07f2f7c3c2def0d5f5e66b1b71a08d0b24b5f0bf3b202b7d7e675c3c7b1ab934",
    "signature": "0xba690493cc039e7c0119f41e570433795449e45fa6686f9544aca6547907dafa3beaa5d11c895bb867751e1fd50ca26340eebba4297155f0fa5ab51dd78b432e1b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}