{
  "manageEntity": {
    "action": "Save",
    "entityId": "276972261",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x2fbc2c121e5e26fd671c0e6aa569d389d6077366de379e6165d16b6863178288",
    "signature": "0xaf1b8d325ab29960a3a451c8e104fadf98a497f1dc0b324f024f53a70aaf2b8f6ed4fd36dec02a8f47496fc1edfb1af84ecfc75b4f25ba64581f7c87f41717cf1b",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}