{
  "manageEntity": {
    "action": "Update",
    "entityId": "980016121",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x5d36995cacb35cd250bc9c589620a230c109e438378c5a5fba0a2ad8fa81d7c8",
    "signature": "0xf1f46d15be8df7a6be600dc62a836aab2333c2740c458e1e3f99c6ed073d38770c06f513e1ed8192e917f7dd2d0fb356e3141177feca2e7a9600825d76e45e0f1c",
    "signer": "0x05749f11201b487D5B09AAB75e31A74aAC4db351",
    "userId": "980016121"
  }
}