{
  "manageEntity": {
    "action": "Save",
    "entityId": "2086065151",
    "entityType": "Track",
    "nonce": "0x78de4a0976f2653b3faee2082e56fcf6b7605e487771b5ddc25224e51213f4b7",
    "signature": "0x77713c77ddce949874478c1ae349c221f24247accfba8707204e43eccb8a22f5532e3b95dad30bdc92725b1af5eb90d6e48c8b1e9a7f47ab57c2d08d70ac002d1b",
    "signer": "0x793bbEFbb3Cf1e6529B90296e502145aCcCDE8d6",
    "userId": "838777725"
  }
}