{
  "manageEntity": {
    "action": "Save",
    "entityId": "282179966",
    "entityType": "Track",
    "nonce": "0xac69df074a2a50fafe8238b746f632937a3324b6de96adc6227419df4a9a178f",
    "signature": "0xbd1f413b198e33f6810bb8188d2ff5fa9aec3a61775df91c07d7c1635b34afd96120c15a5ede209e6f4a49b0d04fc37cc74eeafb2576bdeb57b4ae5b755baf131b",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}