{
  "manageEntity": {
    "action": "Delete",
    "entityId": "1539834491",
    "entityType": "Track",
    "nonce": "0x7ed87a7b6381b48da308ccd0f0de2fd805726e1455f801e0672495b86454183d",
    "signature": "0xdeef19671ce5fe8774a0eef1e48ebe06269db7f9b5c8e47ca6391ad73be17e8a4543c6ddef226dcc1502a9fe4a307eb3176c45e26f7a7fdeefa7d0e45e1405201b",
    "signer": "0xEa57eCe447b23C595fB358e464ef7d6146929Db3",
    "userId": "210875"
  }
}