{
  "manageEntity": {
    "action": "Update",
    "entityId": "383246485",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xae7ea0792639d7f5c04cac061548fb74e8d25ea3b7ecc9568274c076a9bdc909",
    "signature": "0x3e41003adf9fea299f74ed0538b403ccfc26ef6c28543854d79efdeb052677f9146f3e00c7090192c14c7d3ca08868dbfd4b9ecb8c9d43b44d8e1514b4a29aa71b",
    "signer": "0x8fE23580516ef5596006BBc1541D2dCab23bCE56",
    "userId": "383246485"
  }
}