{
  "manageEntity": {
    "action": "Update",
    "entityId": "863949363",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x5f803054e552dad4ad63296e77e79b81c80a4f3eaa53c5e74ff3d033eb0aecb8",
    "signature": "0x507d9fcdb3bd4601e0cede519b29e07f6b93c03f151a8ad274e74e1f141741dc55f6cd7e91425a93519c1cd866cb7fb3042892452fe8da03034bb000786d954e1b",
    "signer": "0x0e5312f4Ae4E78F87abbfe37b52257E58F93Eb56",
    "userId": "863949363"
  }
}