{
  "manageEntity": {
    "action": "Save",
    "entityId": "2085753160",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xdb393049b723452a60ee95088d5f17f745358071d2fca029c57f29786a1c1fda",
    "signature": "0x4b48043c3b7968d5e7f59a1efe9f01228cf8ad75bef289ccaf9385a962aa064b7960eb07a2a7dbbe91ea65c938f93d47af5033a40097c0da765bddcc97bf2ea01c",
    "signer": "0x9c0E158fd6a79ba8384938c72F34b5D765d2A9Df",
    "userId": "178678516"
  }
}