{
  "manageEntity": {
    "action": "Delete",
    "entityId": "288194417",
    "entityType": "Track",
    "nonce": "0x23f99d416334d0651d296e965b83912ed2eb00b1d44559843fc5cfad10b2d053",
    "signature": "0x7cb300417f9e6139b3d0663961d862bcde12b6464004ae00aaf4720e017d8e994954b9cf92da32f4206866f0e768323db98681637bae452aa96b28e164598c761c",
    "signer": "0xf68E57fA8F57Ae4Ec6dB1e009D47dA044cb6D6F6",
    "userId": "631453118"
  }
}