{
  "manageEntity": {
    "action": "Update",
    "entityId": "328056745",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x69adca1bd85a26b4d13c5f7e623461de949c4e1c602e101d2f728be199100ee2",
    "signature": "0x56ea6ec7c2176a6849d534800c0ab51ce759c4901bd2695572c46b41001f346024341d7cc64ec63602db0f75f0e4ad3c46d0041ee23d03a1b19c0328d1ae71ab1c",
    "signer": "0x75d782C5a68f76DfA69c426479B6ad14383D035f",
    "userId": "328056745"
  }
}