{
"manageEntity": {
"action": "Save",
"entityId": "1764211468",
"entityType": "Track",
"nonce": "1794072986960970516",
"signature": "0x2740f1332bd9e58b00d0342073e9ad8c5a674a7a3d4dbf21dc35ad16ebc889135b56e82ecc94be44e4b52d778b63653318b7b1721bd3a20d9ed535c8e8f356b41c",
"signer": "0xe1cF0390556E314AAFF3289d8449EE382A46B881",
"userId": "300526909"
}
}