{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x231e8fbece2aa186edfd80f364a3a745a7fc9a6ea1870e276a9a39ea4b63430b",
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    "signer": "0x694ade4153E7A4210918Fb26CB42d477dFaa8B2E",
    "userId": "486994713"
  }
}