{
  "manageEntity": {
    "action": "Save",
    "entityId": "362268",
    "entityType": "Track",
    "nonce": "0x83e3ed88432ff87e64b40fd698f3e476e48f969ca98efd9ebe1002d10639291e",
    "signature": "0x2b2dfbba878f0b775027213f743eef7bcf6b8f244d892a902c97284705593e760f5385765f63b58a1994d03314218cd8d55a3007402cc97e32425744f7ea38621c",
    "signer": "0xDC5D8e6d43489811098d4d3D31fB7D6585c9Bb31",
    "userId": "735980234"
  }
}