{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "50198",
    "entityType": "User",
    "nonce": "0x1f9bb8ef54181c9d72146d5b2821e5443b9108921a71d2108a993ab348bbb1b9",
    "signature": "0xd52adac6c10e96b6d600dda01f9c651031ed1108b826d9efd66ab6689f718afb27dcc84c6b9f64cb3c817dc0be6c6e3686f5ad45ce13872d44deebd47af3bdf71c",
    "signer": "0xdEc12eC3F7972dB51907501aF18eb17FBa37a413",
    "userId": "211416595"
  }
}