{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "414486340",
    "entityType": "User",
    "nonce": "0x5725a5f4e29df6dd3a6e73f3e1fb27370007196370504401e0771b95f34853fb",
    "signature": "0xdd44b569fab0ddf4133641991a4c1ded0c26e57533b394da552d54a3ffdfa3d81ef873e1795b3c19c67fb5e1af395b924f2959372f300f634fc5cd786a85e9061c",
    "signer": "0xA5fFfA5b8673Fb93490E3F9B0BeE58e1f0Ce1231",
    "userId": "508186998"
  }
}