{
"manageEntity": {
"action": "Save",
"entityId": "2114751762",
"entityType": "Track",
"nonce": "0x342ba1f732fe3bd4917284f9ddd9cc5058f8f780784ad4d3a8c6e8a9706b758c",
"signature": "0x8233b2fda02d6a078e91db738a7a636363b97301b29f1e1e7e007eae79e19a4a5808de78c73d127073ae879e6737377794fcbbb91bb605e2a415b41130e03c4b1b",
"signer": "0xe5223Dc6E411A24e22DcF917955e97a8D7479d0c",
"userId": "981716494"
}
}