{
  "manageEntity": {
    "action": "Save",
    "entityId": "51358",
    "entityType": "Track",
    "nonce": "0x172ecbda2ef3e6100a39e7eb9608aa22b277e7701a570d97a8727b283a943e86",
    "signature": "0xc080bba719d85ad84ff7d17f22e7acb7194bd1cbc3c926329d83d41ab9c3c8c774da6c2bd5c0c5858c9c53b9feeccc884f7a2a1cae83992c3d3e2468f9f64ee51b",
    "signer": "0x036B1ee0d2003ae5B5E252d58647d13f0e588EEB",
    "userId": "161353174"
  }
}