{
  "manageEntity": {
    "action": "Update",
    "entityId": "429825729",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x403ea9dbb6b5c6f2ac8f369ca366bc49e636552a0c9eb4b402f99c8f0068bd28",
    "signature": "0x0da9f29b495f85180b95e33ccc6526edc3da9ece8773e920068223b030bb51125a47cbc55c6311eb974841784b44ce5a2b5f1991da32b86706af1c296ff7368e1c",
    "signer": "0xEAb9Fff0c9a60c9Cf2aF56385027ca8B72877200",
    "userId": "429825729"
  }
}