{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x4440ba65f91ee16f25354d63f89b1a4674ad2221da0c30c2dfa9999ca0bfc7cc",
    "signature": "0xd10d27c9629b8d14ed3a98ddfed5b1894678a2d878ab414c548686ab60c1a5c4178a3841b9bc00aec3d45adb6171c9dd85439be47e91af8935523545b20aee731b",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}