{
  "manageEntity": {
    "action": "Save",
    "entityId": "126734",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x7bdb40e359a4d9b0aaa0a20b2479b706953dce163091fe1cb5dd189a65161e8e",
    "signature": "0x245042752e87f8d9a4ac2726f5f5a6b8c9bf3ee0a27648abd9ca71ae1bbc99cc66691952322e6596f7c91ac016abf683ab3e4acb01f08d75508885207b78ad891b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}