{
  "manageEntity": {
    "action": "Save",
    "entityId": "2896667",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xb637193b065ae84d54843a141c4a2962e4443b1b318dd6bdfd716c99940071bc",
    "signature": "0x98258771c5feba06a489e8df9c1ba746141b8a622de48c1123f31f35772ebd245172104c5721e87df3c0d88616ea2e7ef00afb48e347b783bb8f264965c6ff3c1c",
    "signer": "0x0fe82f565AaE260D57b8e691c61Fb05fE83B6F81",
    "userId": "614212580"
  }
}