{
  "manageEntity": {
    "action": "Save",
    "entityId": "1791913348",
    "entityType": "Track",
    "nonce": "0x1ef1e0f0faebc416c3d25d64c97894a5251a3ebc641e426e06c7a8cea6187399",
    "signature": "0xfb4d5960e38dfb1d7b5ad191c9bf8bc24275d5d399549fd04e0d566b8c4b950c1bd65349e197b43916342cea91d5346baf1948ced4979ee05d53176314be3d541b",
    "signer": "0x036B1ee0d2003ae5B5E252d58647d13f0e588EEB",
    "userId": "161353174"
  }
}