{
  "manageEntity": {
    "action": "Save",
    "entityId": "1326008820",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xc164b9fb25b4c26d8f722794e17537214544e2306a3863f098c5c8bcf0448443",
    "signature": "0x065be34a73072ded2f693fa6a481a880b7d039cb1ed93ea5838828eeff5927db16a2839a62edf47f5b52e7c265fb3ca9d51e999d230ef080a1129aac1d5454f91c",
    "signer": "0xbe916820AF010608151C80f3A74F7c83218094B2",
    "userId": "881446128"
  }
}