{
"manageEntity": {
"action": "Save",
"entityId": "30282704",
"entityType": "Track",
"nonce": "0x328d44aadc18b1678d1633de77ccd3a05e76f77c9d66fce247d6195bd364ee6f",
"signature": "0x48cded6bbd20ccc8a66737564ed71caea49b4240cd3a23c26af7ca0bda816a1e3a16fbbaec16c5f53af7dde5dd483659e02f6825b146e71dfd6bdbf4798750ab1c",
"signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
"userId": "580720856"
}
}