{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xe7f781de17129a367e970dd7ee3168a3ca4136a6e3e2416c74f3b6303af7facd",
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    "signer": "0x6520e2111184F08Fc08dEFa3870B570cED436333",
    "userId": "427200537"
  }
}