{
  "manageEntity": {
    "action": "Save",
    "entityId": "827138755",
    "entityType": "Track",
    "nonce": "0x8402c0a35489b63ead04d63a00770bae9b3c6a9ca771356d5d25ebe1d5ebeb72",
    "signature": "0x9d32b0fa30d65af60ba6b1fbc610145f7cb2bdf36052ff0d6f4872149719215f19aec1d6b95ff4c211f0acfe26d92cbb57e0d874c0a8e799fe5705e74e6bdb711b",
    "signer": "0x7eBAab495a64FAea1f04dc59ff804bf939da7B12",
    "userId": "709077025"
  }
}