{
"manageEntity": {
"action": "Save",
"entityId": "2107902924",
"entityType": "Track",
"nonce": "1793090615043471598",
"signature": "0x07e6099a5cafb74212f127a5b140c83fe5b7a9110425be2eecc17a7acac43a1a50341cecff246ffafefe0f85f86cd1164c12883485ed8db2468a0b396d1f35821b",
"signer": "0xd30fAF377491796757Ef4C1B0ccA8a407920e663",
"userId": "451691735"
}
}