{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x613b7b34a3f758182fddcf328ce4708cd7bb4979bcb3663bd066d2ffd71c79d7",
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    "signer": "0xC2Ef2575F47bcA66b4516f69627158a24A554CF2",
    "userId": "767459146"
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}