{
  "manageEntity": {
    "action": "Delete",
    "entityId": "278738433",
    "entityType": "Track",
    "nonce": "0x0dddc439dd23f883a13ab8d6772dad59b1400b63c7f3be89ebb6c7b89f7e7bf6",
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    "signer": "0xa56B58C8122EfFc13B0BC24198d3091D1f7BC8b4",
    "userId": "859375648"
  }
}