{
"manageEntity": {
"action": "Save",
"entityId": "802565301",
"entityType": "Track",
"nonce": "0x7041ba3d1ea9ffbcea17de7a9a6cebb2bf688d1a8c2b32de46c70c5daf4ec9ee",
"signature": "0xf61b5cc9bde7dd48aefd88d6a52b1815892f4b3f7ab1285cdfe54c19563a23cf46b84a5093406f610fc90351cbea29fac0d1dd48f95b394d326b258b8a0d85871c",
"signer": "0x0fe82f565AaE260D57b8e691c61Fb05fE83B6F81",
"userId": "614212580"
}
}