{
  "manageEntity": {
    "action": "Update",
    "entityId": "739935323",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xc17c8e222bbe5ebb1a375643a548ab8aa2fbfb142bf5c7699b7685f00c844a7f",
    "signature": "0x5ee8ef3710e53e53ce7c021026013a1b5ffca398c9f0d14d91651dfa70ea3c3e45ce9f7ecc67bf66ca9c806f7d62deae282dfa78af0da1c8fdf1da34fc801f881b",
    "signer": "0xb104eB685b9738A115542B4541Db0cB0671F363e",
    "userId": "739935323"
  }
}