{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "557210595",
    "entityType": "User",
    "nonce": "0x6a3d410c33d4f0670848cf60bc9263ce72b43ab19dd680083d61e92ee1d84843",
    "signature": "0x47f350baaedaa1745213c7e465af61e9e4766b4a9a88dadcf5725f5c516f8a4b208d7d7d6b76c36e0f0c0c583fb8abf4580c64f844727b490900a9c70c1803881c",
    "signer": "0x0FcAb20e0C97D4d3d08C8fFD891B8210fa488beb",
    "userId": "170294"
  }
}