{
  "manageEntity": {
    "action": "Save",
    "entityId": "1334327977",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xabb4ab5bcc46dc465828d2c5cba74aeba8a6f6bde9f6248b2b40166e9071a5ac",
    "signature": "0x5a351b9ace9ae2feceac20f3e25a3ab3c9cd5101f248ce0d30b6abe4121d7258228f31656498318bc397c3850f6d3c36a6d0246dcc182e911f878b613cafb7c41c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}