{
  "manageEntity": {
    "action": "Update",
    "entityId": "913442329",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xc7220dc1da00e1004000d55b7c0778fdf337be2f42500224ce49b7ef098c6ca3",
    "signature": "0xdf929b0a7041a9d9772c6f858f0ab808c7c47a972d54215f72c18c2618525c8626270a605a1d359c7955d6790f8b19dd977df4980e3d408b7f1f2232818795691b",
    "signer": "0x892315d6bf0a1fD83345e430A8c751F8eB760100",
    "userId": "913442329"
  }
}