{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "28155",
    "entityType": "User",
    "nonce": "0x30adbe76ffa753b5b1c3de3b1b747b8324b3941b40002f2782df73ab2e06636d",
    "signature": "0xf7ed07fb5a3ba72a92b54f0410551a2b122ae675e1e747582d7fc434847769175ccb46f5108222d892cb81239110ff72f02c2d8a92e0635f05dde78e1271510f1c",
    "signer": "0x674FFC02F71bdD4bD3Ae60c618579EBDD541E397",
    "userId": "787787230"
  }
}