{
  "manageEntity": {
    "action": "Save",
    "entityId": "1482881899",
    "entityType": "Track",
    "nonce": "0xdcadd783eb47efaa792547728d90483c4301a51cef1e0dd83dfdfff601099183",
    "signature": "0x17a0b92f2ac71ace45d7ce4d4d161db5f8e5d6474c8c58203e39013d405e6eb658454e05158ead34de640abafe829e3d67abb70429aaae92a31f727ef23c69331c",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}