{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xe38b1c888b4cc72e6fdc6dc7136526284c2fc3bb28826479f316073d16d2f46e",
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    "signer": "0x375A5c8e2177Dd23db2b9E3D32B93F91AE5eE5df",
    "userId": "967397462"
  }
}