{
  "manageEntity": {
    "action": "Save",
    "entityId": "88034",
    "entityType": "Track",
    "nonce": "0xd7a13cdb055282032b2de31137be8c600c9025d76e78d981cd7a519e9e0692e8",
    "signature": "0x4a006c1bf8a320b214d9dc62c97ac1fc0a17ca0bb68e651464b0043dc2e5fab824f84f5c2485665e9fd01ecc04dfc9524a0d5758f415cc00632252bae65c63f11b",
    "signer": "0xDC5D8e6d43489811098d4d3D31fB7D6585c9Bb31",
    "userId": "735980234"
  }
}