{
  "manageEntity": {
    "action": "Save",
    "entityId": "2017694399",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xa982ca7a67c37dcb6e341b77d9eb3df98b88f768788a792cdd3283a740e77802",
    "signature": "0xaff1acb39d0f0377cb32ba13bfefaae4a3b34be0f342f47af62e600a11679dbf15605c33f0c1a03e597dddff25131f14b1e08c09aba610a250a53ccdf71d38401b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}