{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xe8b9bcb6292b971beac20ee39992cb65dd2b1a0e4aa334ccb11a8cf3269bb7b2",
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    "signer": "0xb6fe96Dcbf74a63fDC955C459d5011Ee0aeE1957",
    "userId": "460950914"
  }
}