{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x806fa85533d9e9a2d32b8199d1cb737a7dcf16dd52220b820b66c1baaf18b169",
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    "signer": "0xF7e8fd3CAEb72CD472029aDE74c13Ae86a0ED181",
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}