{
  "manageEntity": {
    "action": "Delete",
    "entityId": "418958964",
    "entityType": "Track",
    "nonce": "0x978f3ab0a1d1faffe36d78a1ab81c035c71c514762e30eabdade7d63a5215b07",
    "signature": "0x76f77b5aaf4fe2e331217cb582799fef014492a1d660c089ca02bd5aaa9d7b7a39e02fee3e34bc25fdfa18f779a8bcb4e5860f96aa2bf0009f32b2b9e168825e1b",
    "signer": "0xB1fdb4211728Aa91cA335811E0eAaD06b27686e4",
    "userId": "135129254"
  }
}