{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xaeb92ea114e97cb3d2b0580cea3ba294f0c8943bb97e423650111c558e078f42",
    "signature": "0x1672e53e790df6385bdbda34a8ab7f52fa2b97967c442e1fe7ed722e58516d941ea672da12bc3cc5476ebbc133f2c9ea43d8dd94aa240964a6865961273a741b1b",
    "signer": "0xD6147D721FB3FfE66eF92dd41BC786f42c632522",
    "userId": "412763370"
  }
}