{
  "manageEntity": {
    "action": "Update",
    "entityId": "36494573",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x6cd3b9782588a47e78ef599b8c893f41f67a675e41f2108a958ac8566d58a7cd",
    "signature": "0xcbe77ed1b7200cf1e7087c5257562a9c9eb4a37647114a49a6f113ae8ff439f4776fd04bf028953ef39b11eb83807db53b34c9a0bbb1a4e1c1bd14fea62603491c",
    "signer": "0x939D38Db4a8fa2AfbC89b397e2FA7419d724138E",
    "userId": "36494573"
  }
}