{
  "manageEntity": {
    "action": "Save",
    "entityId": "113048",
    "entityType": "Track",
    "nonce": "0x07afeea4103ca2d98ddcc9dae0aabb50564f2e07d299fe023841cce7a03c5e7c",
    "signature": "0x4ade2ee3fa410e8009e5775bd8701873dcde9963c70cff027b6e7abf0732c1a03d3c2b05fb25fa81030d8da5707dd68a1bf8780b6bfb0b6b6d0c0e4066c97b3c1b",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}