{
  "manageEntity": {
    "action": "Save",
    "entityId": "1148556758",
    "entityType": "Track",
    "nonce": "0x34c2c14d2f436fa6d60b66432f7a056148d111fa5b0d026fa0e778286aabd1ab",
    "signature": "0x410460c3fb86044e90b7214ecd55a8e2f79523010a9b07e9741ccebb1db05344753f7571ea8330eec0dd8cd130005913fc283677e7c4d59d449a6dde73e7e2e01c",
    "signer": "0x036B1ee0d2003ae5B5E252d58647d13f0e588EEB",
    "userId": "161353174"
  }
}