{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2684",
    "entityType": "User",
    "nonce": "0xed943dac6b91dd2391d5ce3377ef9d105dee6b1560762d73521aff86d1c837f0",
    "signature": "0x6551709fa1cb9ec93d24bc1861b59c7c80dbd17bd5c045994f5a532bee511488448160976318f7aa40c6b1cc62f4696395fbcd9cdd53771ea97c5a5286990b691b",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}