{
  "manageEntity": {
    "action": "Update",
    "entityId": "395976655",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xf7a6583eb568b567bdbc592afe1c57a5b3d7321facb1d33838671d4d9c9a95a8",
    "signature": "0x4a4faa94d7855113ff7508e758b13fd492fe2b56b4fa9c82988570465b064c4c0864c16bf0ab7221086a11f00542ecb9ae494e69369eae547c7ff2d315420df11c",
    "signer": "0xdC6C02D1F5CDbf4915a3761B36704C517141556c",
    "userId": "395976655"
  }
}