{
  "manageEntity": {
    "action": "Save",
    "entityId": "2133796135",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xfd73eca8d457232d71881e93a802c1e88fd79334c001f0995e760964cb353b2b",
    "signature": "0x1b342cd8d69a8b5ffefecb70164bb03c42d074d0970dc871377b3b8bcc99bbcc31bf4a643c86342c713082a2ef51a1671e9d54d010b5251a03b18cbb7f09c1a51c",
    "signer": "0xF08935327AeC6306C8d0eb92999567e5496848C9",
    "userId": "989073793"
  }
}