{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "297288",
    "entityType": "User",
    "nonce": "0xfc7e81205aefad32739abe54b3cf8d5f8f0ce0913169b3bb27b95d2f39ac46c7",
    "signature": "0xe7825c7f6341abd6dbbdb39a3dfe9d744633889b7456e2cf74df333f69e9985153d21234943fe6c486bb9f9b2568493a05af675cca12cd07708863fe4f4f8dda1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}