{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "283478",
    "entityType": "User",
    "nonce": "0x2eb482425695a04103927f39d78854ad7cf7de53b3b639c3bb5e90d36d7793b5",
    "signature": "0x993609695d968e4517bb116a3f778a76552e2a21193c09863239cc56fb4227e04facfcf3d4445032e6c3364160b0588cfca7cb48a5e4b39a2d7ddc06432c75fc1b",
    "signer": "0x1EEEf459C8e361773166d5681a5066659BC751D5",
    "userId": "210033902"
  }
}