{
  "manageEntity": {
    "action": "Save",
    "entityId": "1275239843",
    "entityType": "Track",
    "nonce": "0x85417c1756e17bbc6debfb46c4b1b559fd7c179074dc1928f2fee16e7f5e1097",
    "signature": "0x98e20ac95acfc6d183dad0cd202b6fefc3146b9dd0d4c30e48443c1b9c298edd366adaec92ae3c248a2d89ef591ac8e1efc6d3f3ae8887251d95256cef770cf01b",
    "signer": "0x92328BFDeD38C9a9De6E253A0CF5CB46A3B28611",
    "userId": "831117417"
  }
}