{
  "manageEntity": {
    "action": "Save",
    "entityId": "1833107442",
    "entityType": "Track",
    "nonce": "0xcce8d953bbf0dd81f7e1a938ee782a2574427a728d0b5aa24d2012717f975911",
    "signature": "0xc6b748f0754eb834ed18d500ac8290e271b981fb108c371a0ed63a048e7dbb621219fdcfac86d744f6030a0e67c354ae657423d9f4cd9012d2e098e72f99dbcf1c",
    "signer": "0x65b2681094e762CAD2349e6C1e2FbC8d54b9c046",
    "userId": "11153747"
  }
}