{
"manageEntity": {
"action": "Save",
"entityId": "694852140",
"entityType": "Track",
"nonce": "0x05d51f740725fda0ec9dc3d07eef0cdb29b97c876d4f6e65cce81406fdf4de2b",
"signature": "0xefa5e4ab6c17f3c43a8534382dc2e4a5bba6da268f587b34e50f3565fc37934865a0590860e33441f2f4a77af5cfb84b005f8e1df4cbea8b3fa6833f81c5c07c1c",
"signer": "0x0b901AE3Eb7b439095858D82Ff194CfeD0Fd3396",
"userId": "167557"
}
}