{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "18168",
    "entityType": "User",
    "nonce": "0x75dc010451ea20bc8dd2eb497eb9ee77b275be24a911872bc67682bc7febbd58",
    "signature": "0x8c7279c334e9898e1d0c291156bda3557e70d115d9179ed2138be087625a969a771b88becff97e328b8bcfbef92b9e1d0a8f9e0ceb7811618544a454f462e1e41b",
    "signer": "0x93927a047d15ce3D13193c5F046160C9d2b028Bc",
    "userId": "638513293"
  }
}