{
  "manageEntity": {
    "action": "Update",
    "entityId": "659442452",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xadf1d08a26d587ff94d81249d9491f537891bc3e29a858d10f553663e7ad911f",
    "signature": "0x80ad7d7438cd6a0e384ccc4a93c53331d0c44fe906ec16c9c08682ec4bbe7d6e2eaa92342d4369a4f75d64b688ea1201f835af3fb13ff53c9c773a23f17ca37c1c",
    "signer": "0x72Df74554c95e53cc1710D76b72146bBC0F3DedD",
    "userId": "659442452"
  }
}