{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x8b0783efcf70ef8a721c6a8cb580955d6b9eaad9499dbcfc95c1f1bb219af6c6",
    "signature": "0xab12a3fd14a3eda8d105188ea3b1352f213594f194e31c71590ee000e5a6855a490e3a979d9ce8a0bce77c78a9563ca70b8cc07a57f0394ba050932497e7723b1b",
    "signer": "0xeF788D96d123BeB9bb95a5928eE279DE14FBdd85",
    "userId": "412929106"
  }
}