{
  "manageEntity": {
    "action": "Save",
    "entityId": "2075237461",
    "entityType": "Track",
    "nonce": "0xe059369200285cb64a52ad263214de0b3660068b5a3427162e1376fc22ac8e79",
    "signature": "0x97895a98fda5bd02aca2c44249f955518a14af474d1a7d3eefc9dc12775745d32fa6db7a84d41362ea3ccc6223d72e8619676281784fb0f4dd8dbe7845e4ae821b",
    "signer": "0xe11dA79186d635F82a6a93130665e3990797Eb11",
    "userId": "555449794"
  }
}