{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "323361833",
    "entityType": "User",
    "nonce": "0xbf2baaf6d4fa7d9b7caf6aeecb8fb0f93515ccf5937de2a603416248831d394b",
    "signature": "0xdd5ad79b96bab174f73325b757e16eacf99131290df7b4bdf8a801d4ebeed3d32912cbcc1155e2db116e16d74d91f027b163df9ff6c8e61c26c8dc47079a69a21b",
    "signer": "0x73317E9D44b6E1b7d146760b12dc5546Cd140ED2",
    "userId": "683609933"
  }
}