{
"manageEntity": {
"action": "Save",
"entityId": "88480",
"entityType": "Track",
"nonce": "0xe1ded490eb8369ce9e372d20ca9e5de287400fee3b4ac236d8e6d3ede8bd9475",
"signature": "0x462154e86eacc229df3609bcf4abf497d2d19f314eba808691a1a42ae731802f3fe0efb416e28ade9aa3a4d3e5bd4b6763496732604e6f8e25817fc50a7be29b1b",
"signer": "0xcF1BC458908F84936B19Ca8Cf67C751CD647B02b",
"userId": "310796"
}
}