{
"manageEntity": {
"action": "Save",
"entityId": "1697573509",
"entityType": "Track",
"nonce": "1792508078781061226",
"signature": "0xf666c03eea2c3fcbdc397e3e1a2b894aa673270034020bfbc8618cc00ffd457107083c2bc39dd9d5b12e6945a34e274dc06f01643c9e305c09b62c6f107174d61b",
"signer": "0x1007e09532BE90331E035838A9E2E0700bB9741a",
"userId": "329513359"
}
}