{
  "manageEntity": {
    "action": "Delete",
    "entityId": "1257182224",
    "entityType": "Track",
    "nonce": "0x9704e79325f415b74652664f7a7f1fb5518ecb6facc174e83cbf0b7009d28b0e",
    "signature": "0xcfa5637216a6999320a0b39edef40b2a1abfe348c6376cef8bb6f1692ee5d5891f701a051789494aae497086ec0007da10df0b890fa251b8d1cf34edbfd1d2db1c",
    "signer": "0xF7Ff21A93e2fD804bf23303760999b125e251EbC",
    "userId": "571769298"
  }
}