{
  "manageEntity": {
    "action": "Update",
    "entityId": "741289480",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x8e908bed00640bca455942be710306f0f65113e526ac4309905cee198fafba54",
    "signature": "0x9f6000d3ffe23f6c8c0fff10d501d6a7882faf34d9c847ca572f4af463e294db11ab1f9ac71143fa72fd66321fc65392ea44a00cf4ada10b24414a15f4a924c21b",
    "signer": "0xfCD58eB94eD3B298C497ec71D1A40Db8e120d878",
    "userId": "741289480"
  }
}