{
"manageEntity": {
"action": "Save",
"entityId": "1778499572",
"entityType": "Track",
"nonce": "0xcbf4cd2d56643418362446dc698770c8e9f99f66ce551acc82b25fb3b7e00186",
"signature": "0x6f2429ecc8183a8f52731492409b2392ac947bd339863c8589daa1bae41baf7d22f23b15e358d6fa14e39b16385c697719b79b1d9771da7b5013b6f3a9d946651c",
"signer": "0x568426a5D555ADe94657d547B2Df4a4dc1f0C014",
"userId": "71569007"
}
}