{
  "manageEntity": {
    "action": "Delete",
    "entityId": "50629550",
    "entityType": "Track",
    "nonce": "0xd7ce4044d05da08401923c59cba69a83fb8c9c83ff5403470ffa8ffd0e913095",
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    "signer": "0xfa03eadb9cF7DCe21BED44cB584aFe4a25C61536",
    "userId": "394997"
  }
}