{
"manageEntity": {
"action": "Save",
"entityId": "1764633039",
"entityType": "Track",
"nonce": "0xf8dfd942fa2417efec5cd39b06d917bf857204ce9c1b83187eda6152fdcb4465",
"signature": "0x13c47143b8b244dcae944474755efe50cb8b9d5358dfde7b4f2fec13e9bfccfb6041b9b9f4c4cc46b4220e916798c9f7779f0b19c784c474012b5074a804747e1c",
"signer": "0x0fe82f565AaE260D57b8e691c61Fb05fE83B6F81",
"userId": "614212580"
}
}