{
  "manageEntity": {
    "action": "Update",
    "entityId": "498735816",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x45884e39616854529709501048ab2b9c21bd513a375a3b00602ca065fa3ab469",
    "signature": "0x48a8e2ffa0636e8e375aef089a15d90e53a30c31fc675df7dcfe22198c50c00a1ff2aa5b8c838b565583bfd8a7c7fa66daba26a1894a78ee2ca1c070629a80831c",
    "signer": "0xE1c7611A0B67daDfEaB50b1d1e5128058367B02B",
    "userId": "498735816"
  }
}