{
  "manageEntity": {
    "action": "Save",
    "entityId": "2062206590",
    "entityType": "Track",
    "nonce": "0x6ca9c0d8541ccb7227998a7caedbe1dac74ab74b17985d507aa1833ae3d4628d",
    "signature": "0xe3f9f8b47127e31035f7a3c0152f162095e5f3d5f8b2621c88f9a2e52dfafdd62a604fb1f89d762f0fdd44dce1e9590f583bf71f03d2ba563afaa6a8abec64521b",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}