{
"manageEntity": {
"action": "Save",
"entityId": "914590847",
"entityType": "Track",
"nonce": "0xe13bfa06f826c1f33533baddb7729f159f577d7659dfe7c3c2f756b72096d5d6",
"signature": "0x9dce5faa21c1443e0a9265366a4806797f3ba6423a910ee6f81f9d613e4224fe43c3d86c037391d1de9ee0562a7c47ace4c4e430a3d85dd3ee1dc54f61b1195d1c",
"signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
"userId": "580720856"
}
}