{
  "manageEntity": {
    "action": "Update",
    "entityId": "740062254",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierarcoya3netk2u7hquwrwirfcagirp5vbo2hhgyqfjdw35jun6rojq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1413167279},{\"type\":\"playlist\",\"playlist_id\":136476484}]}}}",
    "nonce": "0x758861070cf38838a172a37b0b24e4a4fce3f22c713fec602e52768b7c3ed3bc",
    "signature": "0x69d9d84100af727711aadf722fa1be3ffe7f6efb1dc0b5f1165ed187e1588cb237fe6fbaddfcf215974f225c0c665cdeec9b744cd9578e7b0ad5c02e1d4ccb101c",
    "signer": "0x4D4b044975729f8B03ae75F9BE9be704fFF87751",
    "userId": "740062254"
  }
}