{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x0008b3af01e216b86ec5b494774dc19813ccbb18619ba60383420ec8bddab5c3",
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    "signer": "0x297ec94a3D42104bd043dfdd15405Ef6DC0C3246",
    "userId": "340004845"
  }
}