{
  "manageEntity": {
    "action": "Delete",
    "entityId": "1100312228",
    "entityType": "Track",
    "nonce": "0x1d03791f394cbea9519708e021c9e144da7885d9313f776ff51e81f57ab48b66",
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    "signer": "0x406e72F6E0477C3f341Eba89411b7939AEF4533B",
    "userId": "50722"
  }
}