{
  "manageEntity": {
    "action": "Delete",
    "entityId": "899404538",
    "entityType": "Track",
    "nonce": "0x70a84acbd5238c08ce9da6004c26af3291dfa970e6b2e71f74c6e094098b546e",
    "signature": "0x290c18ce6920392718e220f55cf630c2f65985a6bf9fb69fa3ab4d1139eec67c222e4a23e4a11f539baf8c6d011bf9245b5fc307212fab9665e6d9a14ebe19981c",
    "signer": "0xf201FBbA39363455f5D8fB14B8274BE5571dda7C",
    "userId": "395817390"
  }
}