{
  "manageEntity": {
    "action": "Save",
    "entityId": "1070093539",
    "entityType": "Track",
    "nonce": "0x82e305723e95f935af9b24fdff07f40ef00baac99e88b1896fe5d02388bf7901",
    "signature": "0xa9ad31bc460faf2eb5d54c2c70d33f6c515878a6729d6378a4df2f31180227024c934f9b25fd6620845d9d72a2beac9c3b10fcaac8aa3a34e0c7ef4270df27ab1b",
    "signer": "0xbF4F1f4df4779768AfE75515b1552a2Bc5b4Dd32",
    "userId": "100976759"
  }
}