{
  "manageEntity": {
    "action": "Save",
    "entityId": "1333827870",
    "entityType": "Track",
    "nonce": "0x59665cd059deec73880dbd271a38111195a0de7a5149b8fa70ec78bd2e7ae88f",
    "signature": "0x5346263e905ba6fd29798a622987e07446c362fe70011f4d4f3fcaea6b3155b429a469605ade3f9ef9d589d10e4648b58d9d68890368e06bd7a31964750102951c",
    "signer": "0x7eBAab495a64FAea1f04dc59ff804bf939da7B12",
    "userId": "709077025"
  }
}