{
  "manageEntity": {
    "action": "Save",
    "entityId": "1181369937",
    "entityType": "Track",
    "nonce": "0xe4b1a2d2268bb426494df1ea3745410a01045f7695d62b5abb80d5d5c5fda44b",
    "signature": "0x9c92dea0ced141ca383da4931d5c36ec0e8cdc1f212f57cb77e7e64b24ebbf13701838e4f7e673261a68a6cc28437df036bdb5383bbcb5b1e83f9ce408095a391b",
    "signer": "0xbF4F1f4df4779768AfE75515b1552a2Bc5b4Dd32",
    "userId": "100976759"
  }
}