{
  "manageEntity": {
    "action": "Save",
    "entityId": "160292715",
    "entityType": "Track",
    "nonce": "0xcb851c57d5d80da5d47a9484606af758cf3c5b359e29a387a39044f5f4513576",
    "signature": "0xfed1c9e4d267e04b73238e5e128f4858bcce29797c1527e510d0946525a4a8e3271b8ae0bcab89f5c3c77e9f1887cdb6f64c3bac3015d157507514cc9cb81a1d1b",
    "signer": "0xA66d5981794A5e084FBD9adBFF28F465924fb9a9",
    "userId": "980224167"
  }
}