{
  "manageEntity": {
    "action": "Save",
    "entityId": "2111142770",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xe2368df49f1f542bf7dfe7a03d3304aa1a34ccc241b1781f717be69edde7f844",
    "signature": "0x628474d6c09eb075569296596d45c7d488c607dc8f20b85b17030633f49921e65f9d31304b01f17a0050876c8a4b821713661c2955f4f058b22725fe155fbcc11b",
    "signer": "0xDC5D8e6d43489811098d4d3D31fB7D6585c9Bb31",
    "userId": "735980234"
  }
}