{
  "manageEntity": {
    "action": "Update",
    "entityId": "650710289",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierazi7t6gs7yq34kt4htovesw63shxopntf77wlwnokp3hojxjc7jda\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1636386538},{\"type\":\"playlist\",\"playlist_id\":1514192617}]}}}",
    "nonce": "0x3b78192fa2b805a7387c304c9790c7729ade092cf964c278ab0f84fe641ed2af",
    "signature": "0x2f8d899e1be52edcb729371bf357424762dff27c03dbc6aaa0f50d40eda91f7c5626b4545a76a9e254e6c877d3d50d418d5276525f1b2367a9fb8cf647884b6d1c",
    "signer": "0xA76bb874Ea465ed9b8201008c0Dab4F17b244752",
    "userId": "650710289"
  }
}