{
  "manageEntity": {
    "action": "Save",
    "entityId": "34013946",
    "entityType": "Track",
    "nonce": "0xb66ba30ddfc67397f6b817bf7682b48c326ce2591ec26164d3aec561de547091",
    "signature": "0x63f3f69982f3eed8353a9b845acc64043c9200d698b1b712955550b7693bf8204bcc4faa3cc54e2e6032358daef9b352ccd16ec03e90a2f1d5e9e64fa3f582d91b",
    "signer": "0x0fe82f565AaE260D57b8e691c61Fb05fE83B6F81",
    "userId": "614212580"
  }
}