{
"manageEntity": {
"action": "Save",
"entityId": "76329054",
"entityType": "Track",
"nonce": "0xbcfae51545b17bbb4d57885f27be11153b7da7391398a6ea9696697b58f876d3",
"signature": "0x09f2bc201fe37c0f40a706e8261980b7d97351f45df22e734054ca5a998526fa6f4931f20ff100043f8f51594d5c5226b708dbcd0dde2f462414913a2c891d6a1c",
"signer": "0x5452f86EfcB1153FF9C10bdbe4103Ce25434D124",
"userId": "620307004"
}
}