{
"manageEntity": {
"action": "Save",
"entityId": "1197531433",
"entityType": "Track",
"nonce": "0x95857587690a6538494a11402b36a8b53b6cec70f969a8d6ef7f226fa2478976",
"signature": "0x984ee8c5167f1b824b1d31ebc93b7564803a5c0042bab51a3d6ec5e9e4d72be6096d01d705872f252a47b8255bad343577d18d9ced164dddff1caed2d7b30d621c",
"signer": "0x27204C77Baa4a510c92A96A4ba3661CC53EE568E",
"userId": "35918963"
}
}