{
  "manageEntity": {
    "action": "Save",
    "entityId": "1035296910",
    "entityType": "Track",
    "nonce": "0xcea7c8adb6f5e066b562154a7553faf1a8e0d61a3fe344bf70617fa1c91908a5",
    "signature": "0x6fe36dc699920aaead2f1b72cb7ed03627ebde0cf48130c5105a07eec6ceae615af2ca0b39602886a60be74e3ef214ea955bd5daf081ba08bf7c065071cd47db1b",
    "signer": "0x6AAB6EaEa3f7F15750b649C269b0391dcB19dEeb",
    "userId": "92019297"
  }
}