{
  "manageEntity": {
    "action": "Update",
    "entityId": "383246485",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x6eaa0d437f077b07989c10568f0db9d23c3a63b99aa14cebb04091cbb025ba37",
    "signature": "0xca079c165961a1c744e8a73ef4e769bb74c8a8117905a92e9b389ac8088fc6b5179f9d7c0b4897c77682485aaaa15777d13e2c85c58d9ecb369f12915c31e81c1c",
    "signer": "0x8fE23580516ef5596006BBc1541D2dCab23bCE56",
    "userId": "383246485"
  }
}