{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "54015",
    "entityType": "User",
    "nonce": "0x3a697709d43159df5c85643564e3ae963cd722f2c3ac066711f73fd3921cc66c",
    "signature": "0x97b32621cceae12778d667eb0f29ee5df29048b911e4ece4e6c9c27a229ef87826d86e5d6a54eba14b2d2b74d2c21b74b5be121d9827c34acbe41fd1e3e002891c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}