{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x3ebbd3c6ad0f0bcda2c4cbb730f8487702df6331eba0f2e0e343c7398146184d",
    "signature": "0x27cb42c53e3d61e8c845a68d725e624425dd9d36dbd29a693bf3b76815e7621718db49a27dfa2cbaf1153268b3d7295882925d35735ea77a1be3b2ca9a5f42711c",
    "signer": "0x45bF0eF185a00549e9683B506c4DdA2DE9C521cE",
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  }
}