{
  "manageEntity": {
    "action": "Update",
    "entityId": "840006357",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xe08805647b216c2852b8e8b502f56c8b89f84c174ca1cfb22b6328d5e8c2aa06",
    "signature": "0x24e2215240a279d46b04a21a4682440e4a5838e63c2b7aa247c1dbc3171e6c1c76ee172a9ceb8181db960bc61fc7b33f2543a3a8a5ecd701f661b5039a9a798e1c",
    "signer": "0xAf41d5deF73a190FeC613913d0F353d5327aabd6",
    "userId": "840006357"
  }
}