{
  "manageEntity": {
    "action": "Save",
    "entityId": "2026242906",
    "entityType": "Track",
    "nonce": "0x9a7b0b6444d01c5e417b17f21b390711c987eee33cae0e794d1b81df15b302d7",
    "signature": "0x0e3509cc6ec082d0775989881b88f4203972041ac73124338b56962dfd5843b1196a0dfde7b183e8a0b8d14273e51cb83ee21eba9ab2191d91c4c7ecc752a2971c",
    "signer": "0xaFdEC27229de1023f5322f4Dbf0e874dC548011F",
    "userId": "817564020"
  }
}