{
  "manageEntity": {
    "action": "Delete",
    "entityId": "1912503223",
    "entityType": "Track",
    "nonce": "0xffa5b4ebba429ba4bbf20f32cf527a5a42b13dbb4b339555bbb49ccb3a50e981",
    "signature": "0x9728d6e564571b2076494b19d0f5d25e0f7f4d732ae2e97146f1e9f8fcab96fa2bff3715ae273f4fd97c2ffc34c7b16c1e025c64e7453eccfcdb6b0c42150d9d1b",
    "signer": "0x5edE4CDf5e928ECF15A1cd01346BF471A6801527",
    "userId": "1246"
  }
}