{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x58c0f864aabb70892f076749ea15f5f836ce7c2387a62662a792f88f03b11bd7",
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    "signer": "0x085349436401B76F681B21fbfD19682c7d29dFe7",
    "userId": "936565475"
  }
}