{
  "manageEntity": {
    "action": "Save",
    "entityId": "1226179010",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xf9b943b38738daae21128fa5716f710183079e6e3ae370593593fdd83515a12f",
    "signature": "0x325e656ba5ea1efa9cd231684ac75b8b7fac6fec8a7603c655b494651b964d5a7761d2d3450249ca4d83f9a229235324932602a0a31807366e0f07094c1684381c",
    "signer": "0x06F989586c5477333A41f6057f224Df79903862a",
    "userId": "24240642"
  }
}