{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "230373725",
    "entityType": "User",
    "nonce": "0xb4737fdcc73dd799507e6d5a3eda1aee2e66b84a7b49128e4275efd345b7692d",
    "signature": "0xf95aeb12be90cd47f0adc519228b2a1c6523c4e2a7f2786b6da26db6806b9d66256f121930a21153c4e1c10a45f6cc1fc96d2c256a26e2a70db844ace99d03c71b",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}