{
  "manageEntity": {
    "action": "Save",
    "entityId": "2061362570",
    "entityType": "Track",
    "nonce": "0x96699ff51c4f690d46e9f66ed9f7c7dfa1b5dbaf0046148a0bb88cd7cc943ce6",
    "signature": "0x51dbe36ee86d46c61babed8443f6b8dd4fbfe0de122b5c631fcabdb19d3c45fa5b317ca05f2f697e3b53494b168c90e14b4d071a930612f087d55ce78041d8561c",
    "signer": "0x5452f86EfcB1153FF9C10bdbe4103Ce25434D124",
    "userId": "620307004"
  }
}