{
  "manageEntity": {
    "action": "Delete",
    "entityId": "1321615795",
    "entityType": "Track",
    "nonce": "0xd75cc9cbdf23c282fc1d2ed85a11dff4894ff3d5d6ef069ca2a6ab91b7b0ec6d",
    "signature": "0x9c9d86300207cca82d29b36d071861bc2116c2ea872b84185d19fc0344d0586540c7dfe7df950a80038f57391685dddd9c5adacf20aadec8edea9122b46837571b",
    "signer": "0xf1F2F9d885e358869160f3F6fca5a802FDb9E6C6",
    "userId": "500830876"
  }
}