{
  "manageEntity": {
    "action": "Save",
    "entityId": "1310660082",
    "entityType": "Track",
    "nonce": "0xf38aeb27a39f7440c35586f86c5b33442057b271fb9ff260214580db67e864b7",
    "signature": "0x69a41ea8ce3b6c5729766d275814c6f1a208f16610e8f90e64315ce83131932012e69a7d39202880b5d8ec26503a0d296353eaef44604e3d0c851e9f81b88d381b",
    "signer": "0xD586F3Fa8b52760A9b982EE658a51dc293559a62",
    "userId": "867360766"
  }
}