{
  "manageEntity": {
    "action": "Update",
    "entityId": "274933861",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierawdhlk6tkq3puru56q33wogct7im7sk4uyavfqzitqdoxw4lm72yq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1843066164},{\"type\":\"playlist\",\"playlist_id\":38849348}]}}}",
    "nonce": "0xec7ef9aaf56cf6bb9b7934f2724f2b96012f307440d20513c7a92d04d7e4b934",
    "signature": "0xabd9171f5c42c460ff55e2a968c7bcf8bcfe68b5ada8704209c9e40a68c51581178f38d6fdecd050532daa720b21271e2718cecda3bb8356c5c45acf5f1a6d551b",
    "signer": "0xE08B006459446E8563f9D7e3af3f424D9dE92E75",
    "userId": "274933861"
  }
}