{
  "manageEntity": {
    "action": "Save",
    "entityId": "2005336056",
    "entityType": "Track",
    "nonce": "0xf8d241d1ebe32f37cadd1148122c7c3fcd58a04681264ad56499d8c3f6be08ec",
    "signature": "0x0ef777f697c26bbb7c057046fc9d8e93a357634697ec43c98f97bdfcedd8d2e442ab1e112eaf80630fd1ad6a20ca6b52aa769072fef64b7d180ba72962ee053a1c",
    "signer": "0x0BbaE3b1B763858507f1A953DC2f9Ef8343268D5",
    "userId": "307156675"
  }
}