{
  "manageEntity": {
    "action": "Save",
    "entityId": "1005060",
    "entityType": "Track",
    "nonce": "0x1daa14cfc544c3f41fc3284cac53f74a48d6dd5966b4da9cc4586a2e2f5bd81c",
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    "signer": "0x2B28feb1CA15953a5a910C4E741698a24e8b3FE9",
    "userId": "887020893"
  }
}