{
  "manageEntity": {
    "action": "Update",
    "entityId": "511721106",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierandnalesluu5gfk46r3kwiokz5mcagvumoondxg6ikeiiauzohuda\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":539860050},{\"type\":\"playlist\",\"playlist_id\":71525442}]}}}",
    "nonce": "0x01adab3473f272fb57511f51dc069ddd73a767e66bbce232983f630ce62f07ae",
    "signature": "0x13dcf9ba5b2278543871d84054c678654854c84549c8177c9bed81d13263a82b1c2da4f419181f9f07f05c17ce0b156b7fdcf592f83703cc5df343a6a3637cab1b",
    "signer": "0x47dbED9A6aEEcAa660D5be033a565bd140969326",
    "userId": "511721106"
  }
}