{
  "manageEntity": {
    "action": "Save",
    "entityId": "1762220277",
    "entityType": "Track",
    "nonce": "0x3b6bbada6be29e15a0d8415b9c1b25bd0d37dccf6c6b133034a6c3de115ea86a",
    "signature": "0xaace21553083374d007c31fc807994e7711c01fb55d43985ebf4841f35f6af347b0e5901055ac958c971d27ca86784d1defcdfb9f45647659d396eec5f0505011b",
    "signer": "0x36d29AA5C780341f3b35bDE6c1411a7Abcf8794C",
    "userId": "571117272"
  }
}