{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "326897",
    "entityType": "User",
    "nonce": "0xa643529af37bc6dbbb38177665d9c0e04ec108f70ecef675143be1ae2f808426",
    "signature": "0xbc50e28d251f28f4b4fbc1f636662fd42ebfe98c69fb7cd12ed55bc52fd46b42200cccaeab392ddb8c874edacab8a624f149b3bea5391c30fe4d4c781eadaa0e1c",
    "signer": "0xdEc12eC3F7972dB51907501aF18eb17FBa37a413",
    "userId": "211416595"
  }
}