{
  "manageEntity": {
    "action": "Save",
    "entityId": "2093217217",
    "entityType": "Track",
    "nonce": "0xccb8f04beb29f119f8db9d5b319bde658cbfa92f7473aeedf39195544bd528c6",
    "signature": "0xa6e8bd7387cb13e7650770406700bbd80c9dc58d9ada15aba653ab3bf07010fe330edd04b3ce834cb6fe796c8225baafc12d63fd330c0960050af927766061601b",
    "signer": "0x44BAdCFCf42113CbB67f519e4efa576B336f9bf7",
    "userId": "136844578"
  }
}