{
  "manageEntity": {
    "action": "Save",
    "entityId": "1743336325",
    "entityType": "Track",
    "nonce": "0xc281b846902efe081737bc5dd859773259181b1eb3e9fa8fca454803b37f047d",
    "signature": "0x96e062b0102e6af8f8aa26ab3aff6441010c73c52cb7d3cc28c3897af88af73f58ff40b4825eeb5519594def7f22d22104781d5e07f99b3f4178f7ab57cb773f1b",
    "signer": "0x9369ae91F6A1cC4996D9126FD991d64e7E24c805",
    "userId": "333763354"
  }
}