{
  "manageEntity": {
    "action": "Delete",
    "entityId": "1404439232",
    "entityType": "Track",
    "nonce": "0xaad3a1beb4cd29eae679c3dd0ce23a5d3daca6fee0f9d395ffe0a84186ce874c",
    "signature": "0xa11af505c4396c3dcf439b7501973dcf4e46c1afbeba4e0a788cfa4f9a4bbc2028ed82e707e98768ac6d3e55a75d08e53040963b90b1c80d82528731e3273b071c",
    "signer": "0xeecAC0808DE6320b11157473c635f58fFc0668A0",
    "userId": "423422344"
  }
}