{
  "manageEntity": {
    "action": "Update",
    "entityId": "544327632",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xecc91e1d5b1b0e51aa35d380152df7871896d2fe8b134f326a6ca1578f5d850c",
    "signature": "0x62e1603a40f25147a0339eacd26f9a29930712711d93273cf61ce42c13bb75573449fbfe1d8498a4e6223d0d4201656108a75c364a0388866847143c574fc5b61c",
    "signer": "0xdce8AFD41B436C058DC5aCa850f232129F567359",
    "userId": "544327632"
  }
}