{
  "manageEntity": {
    "action": "Save",
    "entityId": "924375626",
    "entityType": "Track",
    "nonce": "0x6ee095a5a9632d657a9a3b9c7a3f13323433f7f52ae79c3ccfbcdc158c3aa1de",
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    "signer": "0x7451Cf52e883bc4483b88591c194dc3942E7F191",
    "userId": "584186978"
  }
}