{
  "manageEntity": {
    "action": "Save",
    "entityId": "2034580808",
    "entityType": "Track",
    "nonce": "0xa50439bdf131f8e296bd78df15f9bea8d739ee5f8c526064510604b0f812cdc3",
    "signature": "0xce0b3b49565fa03385b94a49d866f95ea678bbff2fdc17a110436156008a276705192f24f216558506f28af0f7e90b3f9163ea387c45292d02d43653b0849f591c",
    "signer": "0x0fe82f565AaE260D57b8e691c61Fb05fE83B6F81",
    "userId": "614212580"
  }
}