{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "370290146",
    "entityType": "User",
    "nonce": "0x408e3547fcc7ea9ff7ec8ed07af7aec7464fc5ab6f763d31b39b13b465a420eb",
    "signature": "0xb47d6f6ccc0bdbea182d72033576fe86f8a08ffd06c495c4fa2ba1537e3570ad54401163bdb6ba0e9f1faa5e5d75f93b510d248d2c42b62d586e74f6543482651b",
    "signer": "0x6eF66a6206A4589bEd5849d15Bc2746C2603b01f",
    "userId": "989336341"
  }
}