{
  "manageEntity": {
    "action": "Save",
    "entityId": "47530891",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x265c9f4cf27d1b832b825f20e3fdb377ddb6e271bbba8a950e45c40ea423f553",
    "signature": "0x7221ee552bd355fc6a2135afc8b63288282fccdbcc256903dc34071d728f12da6f288eb0aee73c1c270295599bc7afa61f6b7d6b1e7608b50101a03ff31dfb051b",
    "signer": "0xDC5D8e6d43489811098d4d3D31fB7D6585c9Bb31",
    "userId": "735980234"
  }
}