{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "17301",
    "entityType": "User",
    "nonce": "0x0c1acbd27a56c8117d2bcab300c8676b4f41a25bf9b781b7dd62ef30bce44483",
    "signature": "0xff9508d545bd4962217445ce4c60f784c7beb29a01eb19300601cb93f8ff32bc137b25c625033384b9361d1e1fdc5eff8355aee729fab01d982801494660e8fa1c",
    "signer": "0x7fdeEB144300AC6b1Be0E83d8f006b2D3140F73D",
    "userId": "325377357"
  }
}