{
  "manageEntity": {
    "action": "Save",
    "entityId": "2101859325",
    "entityType": "Track",
    "nonce": "0x02a2540be79a44d89f3116e459d5e7258d0420547adacdc24609c79b54af0f92",
    "signature": "0x4e61fd012fed2347f9edff2b3d78d04bdf0fbc4cd847c5ee53f98f5169558fba379821fce442783df5fde45cc4d3eb92261498118ba5f14361d3e83b2a426cd01c",
    "signer": "0x036B1ee0d2003ae5B5E252d58647d13f0e588EEB",
    "userId": "161353174"
  }
}