{
  "manageEntity": {
    "action": "Save",
    "entityId": "1059094",
    "entityType": "Track",
    "nonce": "0x82afd7cd4bde0f236f67b78245d494553bb6d5aaddb983235997f452ac088abf",
    "signature": "0x3b114162a0c98ac5d4ef99e4d6e40498b2cc0bc0d3fe8deb59a6d4483711d19c5eeeadb316b56986cd5e10e04f4cbc8fe484829ea9f3aa98db9ca2236d64c8391b",
    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}