{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "580720856",
    "entityType": "User",
    "nonce": "0x68c8a06c38af0c4bae6d5a37ba6477a9fda38e7c99a87c7d819f14862d9b6a3a",
    "signature": "0x340fd344912f996e2d389ec720cb1b58fb23913f0b56bd3c29eb300f615e639a140cbaf883c4bb847a3860a05ee39183306fad34fd1d4c9d70c96b885415b1141b",
    "signer": "0x92328BFDeD38C9a9De6E253A0CF5CB46A3B28611",
    "userId": "831117417"
  }
}