{
"manageEntity": {
"action": "Save",
"entityId": "346941",
"entityType": "Track",
"nonce": "0x36d1dc0aa3a98fba31ecbdd2712acb2480a0bcd81d09d4ec4c574f64a5602616",
"signature": "0x7991f595f06644bfe05b32a75644eb00951bb9a0c095e6ed388b78826ec4464a472154b322ae1595d40e4b4f6bf04b826a218cb9acd53aa924e5f7dd92551e651b",
"signer": "0xF08935327AeC6306C8d0eb92999567e5496848C9",
"userId": "989073793"
}
}