{
  "manageEntity": {
    "action": "Save",
    "entityId": "1109579196",
    "entityType": "Track",
    "nonce": "0x23cb1b92c1a69063ea9110ce6bf0aece2f698a32ca3e36e30029176a8016415d",
    "signature": "0xa6261b081dde855e07194bc07a0f350177ad0804704dc8caac2ca165202f5da701375433da0d7badc5ff920d2b831a3687cb0fd2a2a44bcd53d89e234449ff441b",
    "signer": "0xdA0eFB0e7b973C487c12501759aDb23012CB5248",
    "userId": "178070"
  }
}