{
  "manageEntity": {
    "action": "Save",
    "entityId": "1224326827",
    "entityType": "Track",
    "nonce": "0xea26645e7354298eeb03e673a072d2b1b499511a31a48a5f2f7aaee9d02e3036",
    "signature": "0x55c7865c5ee07e1e189a1a6ea52435b0722edd7c487733773d56ef1e97d662277e7ea7175a356ac948f3131c8753ebac65de064e833e7240aa3d20e9d86fde5b1c",
    "signer": "0xc92A45F289B4d54D7984dC5Ad135bfE417ce4a27",
    "userId": "4396"
  }
}