{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "164883",
    "entityType": "User",
    "nonce": "0x153e67589448ee79c479f0c1fd070ef34a13c70872f99de3b1b311d5a70ceb51",
    "signature": "0x43137670b2c1c0892bf146ec811a9e8084cdf4c46dbe9f7dffd8d75ad78607457e81137f409578fa16bc733f81fc920d95d121fc6388c93e021db39286195c691b",
    "signer": "0xC3B8Db4fD6b5608e625Fc02e4e8B7a274B7dB687",
    "userId": "110486155"
  }
}