{
  "manageEntity": {
    "action": "Save",
    "entityId": "2133796135",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x028a8a7cac78f3e8541bde5e68ae1c291d0426eb966492f2ba38f6a630e2356a",
    "signature": "0xd6b08b0e6e396d07580a608a1062de3025b79501e1f0c23a4ce39480e1ccb59f57ca5b8457b6651187fbde7a09e18290734245fe8093c2df62ecd661ae55f3cd1c",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}