{
"manageEntity": {
"action": "Save",
"entityId": "1543081257",
"entityType": "Track",
"nonce": "1793461301402311981",
"signature": "0xea489634232be1a321c808df4077bb85bc6a64b54420ac05b08b67049922ada969c5437838a0cc163a48ea5b272610243b3cdb8cdd5f53b9ed48c237672acbd71b",
"signer": "0x23dF8876fD80368D375d911e3CbDFd15B8e85CB5",
"userId": "827420993"
}
}