{
  "manageEntity": {
    "action": "Update",
    "entityId": "323295897",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x48a363154b73b426e443ee04909d4806b5038e17f978a4ea1726dfaa8fa451ea",
    "signature": "0x91cf4e0f173779db6a5a5ca06fbc1ab55879969c1adb98b3662be416beb2f785608916857a10c5dc12e4bf513a7d03ae4ec240a2662a5f0169dddf51426183081b",
    "signer": "0x0B8abd82fE2af1Da3824433d0810Bea9F1E152eb",
    "userId": "323295897"
  }
}