{
  "manageEntity": {
    "action": "Delete",
    "entityId": "912621444",
    "entityType": "Track",
    "nonce": "0xc3a2591675c59aeeac04995d5a5c5c0dff9c57341c9bb95027b62a8425c0a469",
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    "signer": "0x9c05d4f02f1e5Ea12F9f4EAE5398dD0d9e8299A2",
    "userId": "647778501"
  }
}