{
  "manageEntity": {
    "action": "Update",
    "entityId": "528352645",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x71aa6a8345e7a54f5d5077458cd5cc8d9e649707e9a36d350212adca551459f3",
    "signature": "0x8b7ec765e3df380329108cae4e87647901a1a093decc4b58ba60744e4e1494a734b91a405baf214499986bd219e53f1e7c4ac060f18658e868f96f31d308706a1c",
    "signer": "0x6c8dCBC19B550a5AC69fd394bF83e9824E7a6605",
    "userId": "528352645"
  }
}