{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "41804",
    "entityType": "User",
    "nonce": "0x2c001831ecad01562e167d61a8313a6c284f1e582a98966b5a660c2a492aa1a4",
    "signature": "0xf404558f834a7fa5044948d4b1fdc2cfcace0a597908c5193d445690728c257b7ce2c93f0c43077e88eeade25621763d5ee207215d970a1de30d504c81d8e8e71b",
    "signer": "0xA5fFfA5b8673Fb93490E3F9B0BeE58e1f0Ce1231",
    "userId": "508186998"
  }
}