{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "41804",
    "entityType": "User",
    "nonce": "0x7928a1cbcad9be1c8b06e99aa57bdf5b5e59a87205d12792f4e0feda93abe0a6",
    "signature": "0x42bf77b1a9ec70d9686663ec83cbf650b06aeded4fe8c1f3dbbcfa96d663e92d0d18f682b7f80d590f30274a9ef9a3bbcaf401370f676a460f9b717de60c54071c",
    "signer": "0xA5fFfA5b8673Fb93490E3F9B0BeE58e1f0Ce1231",
    "userId": "508186998"
  }
}