{
  "manageEntity": {
    "action": "Save",
    "entityId": "156702",
    "entityType": "Track",
    "nonce": "0xd3425e59e199b860d78c0e074b691b2f3027c8361c95356bab12ad79d7803091",
    "signature": "0x45fe280329c7c41372418c24acc98dd25b8c06bf7f3609a5d0c140136bfb934b4127b97dcbf7781953e7029c1d411755463b5a1d185bba78aebd635626d40c271b",
    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}