{
  "manageEntity": {
    "action": "Save",
    "entityId": "1793160166",
    "entityType": "Track",
    "nonce": "1789781573317046582",
    "signature": "0xcfa9194727b841b63ab938eb7a92e3bd8d210c72e29accc8f550dfa764dcbbae4d042155978e4f9fa8c4df267e8d1225d27648bf0131593592a09f322d5044aa1b",
    "signer": "0xd30fAF377491796757Ef4C1B0ccA8a407920e663",
    "userId": "451691735"
  }
}