{
  "manageEntity": {
    "action": "Save",
    "entityId": "1753280655",
    "entityType": "Track",
    "nonce": "0x767ca48511066a31f3f495fafdaa28aac9080640e0ec792b1fe88f15e29248f1",
    "signature": "0x2fd40c95d581f64cb74c2e7dd77305c82135fbd5dd6f9fbae7b272aa6107eb515a3cf1dfc6934698f0031456a84824a4936dbcf264d80c841d785068ca00f75e1b",
    "signer": "0x102a924C1c076Dcb5816d20E32Dcb6F00e75F2C9",
    "userId": "485987672"
  }
}