{
  "manageEntity": {
    "action": "Save",
    "entityId": "1270798971",
    "entityType": "Track",
    "nonce": "0x5029ea945e3d3bf27e62da4340a183d3af1d5f4bfbb0d8667bb46175dc6e2eeb",
    "signature": "0x60f88cee06020c5a9b4a056098468679f9414ff5f69de63f8d1c949fc6d2a687199941b0ae7d9a164b57d618871749efa5595d04d9d277d8c2d10d6f8cbe5e781b",
    "signer": "0x0fe82f565AaE260D57b8e691c61Fb05fE83B6F81",
    "userId": "614212580"
  }
}