{
  "manageEntity": {
    "action": "Save",
    "entityId": "1069346212",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xcde071bfe4d41e17f261fff44cc354586843b626e0b4029ed8b2e69077419bf2",
    "signature": "0xdd341358c6339f1233cc35ce807c050e899b0f0786466895d827f1ad94c30a8f6aed9a6318e6168278aee060fe3956c7d4b8f1317a9735f7bfa26079984f67921c",
    "signer": "0x03e9Caf2aeac5a0F0e4Be56410d67A4148D38Fd4",
    "userId": "47828528"
  }
}