{
  "manageEntity": {
    "action": "Update",
    "entityId": "162770660",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x00a52bfb73f9f13a2912e7e156196696634a123804892e6cd598cb7f7679c7e7",
    "signature": "0x14dd4384e6a24427eacf06bb209a548d0d7cb12d99a203ac0f928e7856c6d86614b789aa0702a60adf25451f5a303009e217cc4b949e3f04a297907b466ab95d1c",
    "signer": "0x4fdc03E53311BF6b1B8728dd0Ae0630bF74176f1",
    "userId": "162770660"
  }
}