{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "318469",
    "entityType": "User",
    "nonce": "0x33417925b122429b60d78cf9467718dea09f3659f420e2bfe608b8066799e213",
    "signature": "0x0c231326d66f0797a8196492b2f2c08f451daf815c92c45115eb0a913e1f3da67a94c0381f94210c4f17d2bc3f442777822ee3d58fb27eabc40b147f08e501621b",
    "signer": "0xA5fFfA5b8673Fb93490E3F9B0BeE58e1f0Ce1231",
    "userId": "508186998"
  }
}