{
  "manageEntity": {
    "action": "Update",
    "entityId": "154520",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierals3slu6qosueogvx72ht2umb367pmsg5p5p72atq4xb5tjfajsya\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":43501},{\"type\":\"playlist\",\"playlist_id\":377923022},{\"type\":\"playlist\",\"playlist_id\":1082251267}]}}}",
    "nonce": "0xc9925ea21ed3ec21103c2a288f9ba6b355348e1fb7cc346eec136ff143537609",
    "signature": "0x3a86d0d156d7a73edb38ec06d75c2415a48af49a07560acbd2c06ca9de8548256eeb711ab83eb737053aeb4488bed2811fd080d83e8cedf8363e29a0de452bb71c",
    "signer": "0x36731fF6550065F12E9035E4a96956aeC85B9D5a",
    "userId": "154520"
  }
}