{
  "manageEntity": {
    "action": "Save",
    "entityId": "14472",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xc5ec4e76ffcd88c0a1ea18925de6b779a877424915ad7d100f0c8a9f5becf266",
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    "signer": "0x6F272bE0cf1929131937536d1E57b571a5bEd994",
    "userId": "477662771"
  }
}