{
  "manageEntity": {
    "action": "Save",
    "entityId": "2118185922",
    "entityType": "Track",
    "nonce": "0xb211eccba172550baf95e39089f6217a1decee52c5fe36fee02771751f7df666",
    "signature": "0x5d81f6e5df0c138a8824da023e5f171e1bba94c969f3590acdd7ed488bc115a71abc758c693e5644a87df8dd32411e44e02ea1c0dac89ba7e96c2d53177764b51b",
    "signer": "0x0fe82f565AaE260D57b8e691c61Fb05fE83B6F81",
    "userId": "614212580"
  }
}