{
  "manageEntity": {
    "action": "Save",
    "entityId": "1420837800",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x3e699d9b1552085c199de82836594257c3705f1adf477cab1f7d49dc05f40155",
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    "signer": "0x43dA66b40816c8fb9e2B0AA77E0643192169AF14",
    "userId": "636236864"
  }
}