{
  "manageEntity": {
    "action": "Delete",
    "entityId": "1505401650",
    "entityType": "Track",
    "nonce": "0x87fa2308b95e205296f2368a76ed556f6235dc15f6e3ae28b3ebcc8e644434b0",
    "signature": "0xb823960505f44e3fe9803fb3d6d57482647f7102c07c0b722335e0776b713fce52b5fd87b62c2bcdbb46b60590d4174bf03362afb24ecb0c8b23f2368529a6bb1c",
    "signer": "0xfd5EE56eda30ffd18A7A4A54B9667aE09728544e",
    "userId": "377943659"
  }
}