{
"manageEntity": {
"action": "Save",
"entityId": "1875184436",
"entityType": "Track",
"nonce": "0x8556d1ce528058ce188691f830d9edb0505a07411965d2f53308a1f54d78c118",
"signature": "0x62c5dd4fb4deb3272a6ca94f676a452fc0077421fa05fcfa6da4b08d1b443a7d0fd0d55aeea658c09f3f6004618b75d5734e0fb8d1e15fff990d0998e47e3da71c",
"signer": "0x5fa60F185681545769de01098bB8F29cfbaE3cF0",
"userId": "489026160"
}
}