{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xf8df5dfb39646908271049eead0fe3d6c4a72bc94b2b989bb0629fd863c365f5",
    "signature": "0xe64a9d9f133fca1064f9d98bc19f023675f6a6b6d4fcadae85a098f5ccc943495b6d98a283d56c6f2a48b473a35be95f65664e28e119bdb61d67cf178df4c18f1c",
    "signer": "0x995Ca8f2d3956487967aCfd7EA849313C448c3a8",
    "userId": "227564"
  }
}