{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "258655155",
    "entityType": "User",
    "nonce": "0xec0f1e1960d38c2c1f92aa6d6b64a7ad0a6759a32e51e81789d8cb27ea39819f",
    "signature": "0x497ec3b87468317f06723bfa9a6b55d23a46cf890e22ba661e0f8b2732f747e81e064fd8d07f8bff595db2a5aaf02731ba25b61af194eda07f9fda46f126e2ff1b",
    "signer": "0xa99169c0C58d88F3530081334E058a394B7CA104",
    "userId": "960339313"
  }
}