{
  "manageEntity": {
    "action": "Save",
    "entityId": "654373491",
    "entityType": "Track",
    "nonce": "0xb5b0d5d97a473030617aa5f570e39251a67fca3344df3967c6c50c5dde1424f3",
    "signature": "0x1de62649a788e4a465c03aaf60e923910696226df35cfa3e04a6d6ea294cbefa4216672bee7a81a13f53ff755264c9b45a54a3a2699a27c862b0383f02bb24e11b",
    "signer": "0x36d29AA5C780341f3b35bDE6c1411a7Abcf8794C",
    "userId": "571117272"
  }
}