{
"manageEntity": {
"action": "Save",
"entityId": "983907302",
"entityType": "Track",
"nonce": "0xd922f293437e73bde3923c8fae3c2d556326371474b1834edd7e11a7c021bfc6",
"signature": "0xbb5c6f3055e0096227777d9fdf7d31670b059a781c8ce6a6cfa0774adae97a265a04230a86077dcbe045ecbf82482aa3c6f80ebe38cc91ace76f047bb5d56ae01c",
"signer": "0x2B171214e998033E806F72301307B2160CD94DdB",
"userId": "489165782"
}
}