{
  "manageEntity": {
    "action": "Save",
    "entityId": "910407724",
    "entityType": "Track",
    "nonce": "0x0eaade7bfd97882e8d2602ae8bcf47f351bb1c5d484ab3df777e59dc6787aa04",
    "signature": "0xa592412917013e1e73ac8432e2111121945309c7ff202f24077a98942a2556224f86fc7394c185c32012c2e56afbeae8c14404fb65c5f67e4d7d7e3bb91ddf6e1b",
    "signer": "0x283a6Fd0bE176865B404dfc3B2805D3a2701d62e",
    "userId": "484365174"
  }
}