{
"manageEntity": {
"action": "Save",
"entityId": "1526218622",
"entityType": "Track",
"nonce": "0xaf7f475749ad28a2b7d5a6c7782b525db76aed920e19e106852fc619114a5ae3",
"signature": "0x5840b53bdab63fdc0082289e6df00bb58294fd1518e25d796ca32ad5a6668497122adb5a2d5a8102eadca3e0b8d9c4ef07a912ce44129338fa79fa9b4d45aeb11c",
"signer": "0x43dA66b40816c8fb9e2B0AA77E0643192169AF14",
"userId": "636236864"
}
}