{
  "manageEntity": {
    "action": "Update",
    "entityId": "953431020",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x4b734856461e97ba65b669a3421ef73701909206da23a3398c3339f86a09f1f8",
    "signature": "0xccebf81966861d9355041e57a517f0dceee29249dec8e5ec15cb0b2c0f9b397862804f9cc66a06636786aa926a074b80a5f59f798b8af79ff77633000605d8771c",
    "signer": "0x65EA977550F72a2b597FCAD26968ac6D853C2Ee2",
    "userId": "953431020"
  }
}