{
  "manageEntity": {
    "action": "Update",
    "entityId": "424450408",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x70c8ca6c4e3f5ad7ad8964b3735e4b0e2b5acce054707e0987330d5c7a457b86",
    "signature": "0x4c03ced468469f7ab4af3ff9a3e446e46f4621540911e015f03481e2717c32390e82eb08f7ce12d7193bffc39df3f6050b70080030631942503dc63d1f02f4b31b",
    "signer": "0x4Efe002fd2619a58Cb42ff57AB95B37f629DCf82",
    "userId": "424450408"
  }
}