{
  "manageEntity": {
    "action": "Save",
    "entityId": "1091349030",
    "entityType": "Track",
    "nonce": "0x44973b771c73801cda0f56a8f54bcd031e06a2a1dd21147457b9c9db0b9bb25c",
    "signature": "0x28b577951ac56adc830221b848f34f941ff518bebb0e8b38709372bd3ca319870df6c07d658ee7654c3dc849e1949db1a2d01a6481056a3a8d7ff4574b99e49f1c",
    "signer": "0x024BCd5C5886aa6C186caC8992efB51A7EAFF5d2",
    "userId": "895637976"
  }
}