{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1894938",
    "entityType": "User",
    "nonce": "0xe13b9c29a144c579bdc8540516c5ff052c88f55d0d70bd4bbecce95798cc9f20",
    "signature": "0x54ba50f0e39014639e52130c0209c9e74b1912818ae51ab4e8806545a692c84404fc2690a33e6736805594c2442892fe28c182e23201e5e48cd2ec989fca202f1c",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}