{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "16448",
    "entityType": "User",
    "nonce": "0x848c73855003ed766af497901ca19062d1a7f687831a8a88edd1e1f927afa8ce",
    "signature": "0x32f5de1a0fd99370bd019f1e8628119381d47a68b17701f3b2780067c2fb315b7823d7b95d91a44cca57a11711a979fa6208471b744ee6f8eefe40b783b58f941b",
    "signer": "0xF7F56DF4D8a2Ae2BF9Ca645DC684f84c37BbDaFe",
    "userId": "116272245"
  }
}