{
  "manageEntity": {
    "action": "Update",
    "entityId": "211356008",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x772981fa6c8244c455c9517ed421cc0a7efaffd00e86865faba5695c3552ad63",
    "signature": "0xd242660d194db3f1f3b51b36c60e5c2f1ba86c08b9cd1e0b4f04c794b85b94900880bc68e5eae996c8b6c239c068c958f14308c9565992d5a8e99ef48e5103781b",
    "signer": "0xD2797ebA55d8b0aaEC8Bd31De7fAcAB9C1Ea2a88",
    "userId": "211356008"
  }
}