{
"manageEntity": {
"action": "Save",
"entityId": "867980145",
"entityType": "Track",
"nonce": "0x1493c2b7ce766d642b6d3a5ae16a3e9a61cca0be26d598cb5cc8d454584231ff",
"signature": "0x963a2aed3d10bebd07d3f428c88a2a1a428008c6239c1f6c6c6f334aeed9c8dd64cba164ca59842e4982223142559212b9c51a9038deab222492896fb0df6c031c",
"signer": "0x0b901AE3Eb7b439095858D82Ff194CfeD0Fd3396",
"userId": "167557"
}
}