{
  "manageEntity": {
    "action": "Delete",
    "entityId": "548762478",
    "entityType": "Track",
    "nonce": "0xdf8cf615db660af93723d91bfe3480c27784417eafd39b51a15b99df6bb9bb34",
    "signature": "0x37c0f8f7913ceb1067f85bb942d41996ce929d716ee7f82953732374aa40f02120a19235d47a57d7e5342ba2b7da85e63b1fad3ee0a0f2808720cb7236ae3d4d1c",
    "signer": "0xF7Ff21A93e2fD804bf23303760999b125e251EbC",
    "userId": "571769298"
  }
}