{
  "manageEntity": {
    "action": "Save",
    "entityId": "1287347764",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x88f314e29c8f633cf343467b5ae0772ec471a23cbb8863c08892f58ad986b715",
    "signature": "0xe687d3a465278a1065682c4dca51e66501136913fb3b967584630c888567e9650e462b3af8babac081da00eb6fe9de7c43422f1c8b242961a425deb8820e87f61c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}