{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x00c0ce3749fef6148ddfe54f00fe237a5308a5fe12288273b9b0d30832af6f2e",
    "signature": "0x4344cceb25bd3a2ce80d608c9b4a781ddb9e599fef80b07f9d0d0e07547c6f4a0d5a039c9904c6cebe1c7151e5b881a09f3672bf27bd209be33b98aa2dc15d051b",
    "signer": "0x1eDAC6ED0BFb830eC63db186e3c1cf1Fb7C9AcA8",
    "userId": "365761429"
  }
}