{
  "manageEntity": {
    "action": "Update",
    "entityId": "891640124",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x967a837a5dab973a351274b7ab7cf2f1a7322c6fb5d645b63632424769f20336",
    "signature": "0xb7acfdf4ca44f51f37c12a514128243dd1f5ea2b4c5b5374cfd3b6ef4b93fee30010ea72d7c04af968e6c9767b934fb82588a237a5b59ed08260ac0e892cab7d1b",
    "signer": "0x461C28eda2482c5e04094378d64A51aF48971AC2",
    "userId": "891640124"
  }
}