{
  "manageEntity": {
    "action": "Save",
    "entityId": "1752924864",
    "entityType": "Track",
    "nonce": "0x6a6e921ec7ecc250c58429a0d8a5ed6a5399b10e36f5b08e0d247e65817d5cca",
    "signature": "0x5e97e180eb5c7d247b20352fff64f6a78de596999e574d1bc21f5dce0d52713c7bf7b0b6206c73554d9d75f6dd5bf2cecda6e632f4ecaa26aa6169c92c45d13c1c",
    "signer": "0x0fe82f565AaE260D57b8e691c61Fb05fE83B6F81",
    "userId": "614212580"
  }
}