{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "49421",
    "entityType": "User",
    "nonce": "0xdd72c1b71cbb6be8da1c34a294b9591f885cb7b2c1cd985fed503fc5413705ea",
    "signature": "0xdf623c8510b508dec7b7cf966bd2bfa8e215393e802740266c188aba8326b2c82b03b215d02d89654832fd3159c95ad3572f886658ac0cbf1bbd39b46e2781cd1c",
    "signer": "0xdEc12eC3F7972dB51907501aF18eb17FBa37a413",
    "userId": "211416595"
  }
}