{
  "manageEntity": {
    "action": "Save",
    "entityId": "9234577",
    "entityType": "Track",
    "nonce": "0x06ffbac0904dcd72b33c754cd6b06210030b855ae99a1bb3b0031167273898e6",
    "signature": "0x264a93fc9d12f5c994925cbf22071b8e29e7d6974806f744c2fe00c6fc3e61831374b2da44bd6c3abccd830ab9ae2ec01a8dad23294e77aa09b20fcd262da3d01b",
    "signer": "0x0fe82f565AaE260D57b8e691c61Fb05fE83B6F81",
    "userId": "614212580"
  }
}