{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "256479919",
    "entityType": "User",
    "nonce": "0x3eabccc95a18c77d40aeb3db5c0969568ad1910f64b3318be008e429a35d8393",
    "signature": "0xffc531c86b7e48183a187503abb9a29cd9872b7a8046cfe689dbe0f1cbe909315425d5766a002a92fd8e6a6e9fc2471a447abcf989bb690087fd93d74120ea731b",
    "signer": "0x4F7947309355E6235A53d301026a0C8BbDad13cf",
    "userId": "768495046"
  }
}