{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "404",
    "entityType": "User",
    "nonce": "0x3892910d9fdb5a86a325f2a6efa6286f8a5c5fa3fc3bf1f69a935aaec6e16d57",
    "signature": "0x87d22ccdd31497fce7af18b8302db8c536f67e87a40210d93564b4805be39de85b65eec5398a0e1d82f2b57b81772e06b579fa9dc2d0c9d9cf7a5cce71bd401f1b",
    "signer": "0xDd92873Ebabe0C8745098107BD2457E19020CD61",
    "userId": "631125501"
  }
}