{
"manageEntity": {
"action": "Save",
"entityId": "1918729977",
"entityType": "Track",
"nonce": "0xd8adc94f105f6260463027df0eb9421eb5e7c3567c3926a4d80e1dbba46a9a30",
"signature": "0x08ccc4c315b10348f8ff483a18a679d9414bc16780e0e2760341882579637a674fd266e6ec00e762d1994e3ecb6a913cb41df5362517727de77a0611812992571c",
"signer": "0x24844077bE6bb825c0548F36B4EFA030d05Ee1CD",
"userId": "601282125"
}
}