{
"manageEntity": {
"action": "Save",
"entityId": "188217323",
"entityType": "Track",
"nonce": "0xd026875ca65be714710e1a9cc88d41d8466226600f21869b0d0799986256553b",
"signature": "0x1ca9d895917cd7c7f81b34e2db26864508dddb1b32a244aae42e72db0fa9669c6741313526f0a4b85725238e43bd3700d3625c2c65543c4824bca3fe659cbbca1c",
"signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
"userId": "77551267"
}
}