{
  "manageEntity": {
    "action": "Save",
    "entityId": "1794159233",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x07c645edbd926621933defa03e34122d33783ddd28dc0d2bd1ce844ca4dfbdcf",
    "signature": "0x82a7c7f9427a7c572d16c282decd37a504cf049d0f22510e80ee4b27f4d9306a47dd187d351ae314acd4684144b749abc4a40723cdef78c22446a841b2e634cb1b",
    "signer": "0x63EbE5a1B5C5F156330BDf810f5fFf6A224c75c8",
    "userId": "309080"
  }
}