{
  "manageEntity": {
    "action": "Delete",
    "entityId": "570190888",
    "entityType": "Track",
    "nonce": "0x9731af1d1facfbd6c2e13d5e014a28826512fefd8c7b0f367af93029f4cb15dd",
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    "signer": "0x6C1EF2E9c33E2ba1c0d352e41e06e8a3C7721C6f",
    "userId": "96864"
  }
}