{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "44142994",
    "entityType": "User",
    "nonce": "0x31c50243335e90fc70f50b53471157eca55c5ddea60123f3c0777ce10595a239",
    "signature": "0xec91ef9b3f3fd6ceab390f585e4ab470d410087a8fb9d04cb63b776efccfdb330870645506b794609fbb821413e52e8024fb60face93d11abbda454e64580f4d1b",
    "signer": "0x7f590bEFD43b7cCcF038372CE50C813B4290A5f4",
    "userId": "297301449"
  }
}